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Sáez PL, Vallejos V, Sancho-Knapik D, Cavieres LA, Ramírez CF, Bravo LA, Javier Peguero-Pina J, Gil-Pelegrín E, Galmés J. Leaf hydraulic properties of Antarctic plants: effects of growth temperature and its coordination with photosynthesis. J Exp Bot 2024; 75:2013-2026. [PMID: 38173309 DOI: 10.1093/jxb/erad474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/02/2024] [Indexed: 01/05/2024]
Abstract
One of the well-documented effects of regional warming in Antarctica is the impact on flora. Warmer conditions modify several leaf anatomical traits of Antarctic vascular plants, increasing photosynthesis and growth. Given that CO2 and water vapor partially share their diffusion pathways through the leaf, changes in leaf anatomy could also affect the hydraulic traits of Antarctic plants. We evaluated the effects of growth temperature on several anatomical and hydraulic parameters of Antarctic plants and assessed the trait co-variation between these parameters and photosynthetic performance. Warmer conditions promoted an increase in leaf and whole plant hydraulic conductivity, correlating with adjustments in carbon assimilation. These adjustments were consistent with changes in leaf vasculature, where Antarctic species displayed different strategies. At higher temperature, Colobanthus quitensis decreased the number of leaf xylem vessels, but increased their diameter. In contrast, in Deschampsia antarctica the diameter did not change, but the number of vessels increased. Despite this contrasting behavior, some traits such as a small leaf diameter of vessels and a high cell wall rigidity were maintained in both species, suggesting a water-conservation response associated with the ability of Antarctic plants to cope with harsh environments.
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Affiliation(s)
- Patricia L Sáez
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Agroindustria, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Medioambiente, Universidad de La Frontera, Temuco, Chile
- Instituto de Ecología y Biodiversidad-IEB, Concepción, Chile
| | - Valentina Vallejos
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, y Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Domingo Sancho-Knapik
- Departamento de Sistemas Agrícolas, Forestales y Medio Ambiente, Centro de Investigación y Tecnología Agroalimentaria, Gobierno de Aragón, Zaragoza, España
| | - Lohengrin A Cavieres
- Instituto de Ecología y Biodiversidad-IEB, Concepción, Chile
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario s/n, Concepción, Chile
| | - Constanza F Ramírez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, y Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - León A Bravo
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Agroindustria, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Medioambiente, Universidad de La Frontera, Temuco, Chile
| | - José Javier Peguero-Pina
- Departamento de Sistemas Agrícolas, Forestales y Medio Ambiente, Centro de Investigación y Tecnología Agroalimentaria, Gobierno de Aragón, Zaragoza, España
| | - Eustaquio Gil-Pelegrín
- Departamento de Sistemas Agrícolas, Forestales y Medio Ambiente, Centro de Investigación y Tecnología Agroalimentaria, Gobierno de Aragón, Zaragoza, España
| | - Jeroni Galmés
- Research Group on Plant Biology under Mediterranean Conditions, INAGEA-Universitat de les Illes Balears, Palma de Mallorca, Balearic Islands, Spain
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Ramírez CF, Cavieres LA, Sanhueza C, Vallejos V, Gómez-Espinoza O, Bravo LA, Sáez PL. Ecophysiology of Antarctic Vascular Plants: An Update on the Extreme Environment Resistance Mechanisms and Their Importance in Facing Climate Change. Plants (Basel) 2024; 13:449. [PMID: 38337983 PMCID: PMC10857404 DOI: 10.3390/plants13030449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/30/2023] [Accepted: 11/21/2023] [Indexed: 02/12/2024]
Abstract
Antarctic flowering plants have become enigmatic because of their unique capability to colonize Antarctica. It has been shown that there is not a single trait that makes Colobanthus quitensis and Deschampsia antarctica so special, but rather a set of morphophysiological traits that coordinately confer resistance to one of the harshest environments on the Earth. However, both their capacity to inhabit Antarctica and their uniqueness remain not fully explained from a biological point of view. These aspects have become more relevant due to the climatic changes already impacting Antarctica. This review aims to compile and update the recent advances in the ecophysiology of Antarctic vascular plants, deepen understanding of the mechanisms behind their notable resistance to abiotic stresses, and contribute to understanding their potential responses to environmental changes. The uniqueness of Antarctic plants has prompted research that emphasizes the role of leaf anatomical traits and cell wall properties in controlling water loss and CO2 exchange, the role of Rubisco kinetics traits in facilitating efficient carbon assimilation, and the relevance of metabolomic pathways in elucidating key processes such as gas exchange, nutrient uptake, and photoprotection. Climate change is anticipated to have significant and contrasting effects on the morphophysiological processes of Antarctic species. However, more studies in different locations outside Antarctica and using the latitudinal gradient as a natural laboratory to predict the effects of climate change are needed. Finally, we raise several questions that should be addressed, both to unravel the uniqueness of Antarctic vascular species and to understand their potential responses to climate change.
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Affiliation(s)
- Constanza F. Ramírez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción 4030000, Chile; (C.F.R.); (V.V.)
- Instituto de Ecología y Biodiversidad-IEB, Las Palmeras 3425, Ñuñoa, Santiago 7800003, Chile;
| | - Lohengrin A. Cavieres
- Instituto de Ecología y Biodiversidad-IEB, Las Palmeras 3425, Ñuñoa, Santiago 7800003, Chile;
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario s/n, Concepción 4030000, Chile
| | - Carolina Sanhueza
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario s/n, Concepción 4030000, Chile;
| | - Valentina Vallejos
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción 4030000, Chile; (C.F.R.); (V.V.)
- Instituto de Ecología y Biodiversidad-IEB, Las Palmeras 3425, Ñuñoa, Santiago 7800003, Chile;
| | - Olman Gómez-Espinoza
- Laboratorio de Fisiología y Biología Molecular Vegetal, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Medioambiente, Universidad de La Frontera, Temuco 4811230, Chile; (O.G.-E.) (L.A.B.)
| | - León A. Bravo
- Laboratorio de Fisiología y Biología Molecular Vegetal, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Medioambiente, Universidad de La Frontera, Temuco 4811230, Chile; (O.G.-E.) (L.A.B.)
| | - Patricia L. Sáez
- Instituto de Ecología y Biodiversidad-IEB, Las Palmeras 3425, Ñuñoa, Santiago 7800003, Chile;
- Laboratorio de Fisiología y Biología Molecular Vegetal, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Medioambiente, Universidad de La Frontera, Temuco 4811230, Chile; (O.G.-E.) (L.A.B.)
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Díaz FP, Dussarrat T, Carrasco-Puga G, Colombié S, Prigent S, Decros G, Bernillon S, Cassan C, Flandin A, Guerrero PC, Gibon Y, Rolin D, Cavieres LA, Pétriacq P, Latorre C, Gutiérrez RA. Ecological and metabolic implications of the nurse effect of Maihueniopsis camachoi in the Atacama Desert. New Phytol 2024; 241:1074-1087. [PMID: 37984856 DOI: 10.1111/nph.19415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/31/2023] [Indexed: 11/22/2023]
Abstract
Plant-plant positive interactions are key drivers of community structure. Yet, the underlying molecular mechanisms of facilitation processes remain unexplored. We investigated the 'nursing' effect of Maihueniopsis camachoi, a cactus that thrives in the Atacama Desert between c. 2800 and 3800 m above sea level. We hypothesised that an important protective factor is thermal amelioration of less cold-tolerant species with a corresponding impact on molecular phenotypes. To test this hypothesis, we compared plant cover and temperatures within the cactus foliage with open areas and modelled the effect of temperatures on plant distribution. We combined eco-metabolomics and machine learning to test the molecular consequences of this association. Multiple species benefited from the interaction with M. camachoi. A conspicuous example was the extended distribution of Atriplex imbricata to colder elevations in association with M. camachoi (400 m higher as compared to plants in open areas). Metabolomics identified 93 biochemical markers predicting the interaction status of A. imbricata with 79% accuracy, independently of year. These findings place M. camachoi as a key species in Atacama plant communities, driving local biodiversity with an impact on molecular phenotypes of nursed species. Our results support the stress-gradient hypothesis and provide pioneer insights into the metabolic consequences of facilitation.
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Affiliation(s)
- Francisca P Díaz
- Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, 2362807, Valparaíso, Chile
- Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile
- ANID Millennium Institute Center for Genome Regulation and ANID Millennium Institute for Integrative Biology (iBio), Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile
| | - Thomas Dussarrat
- Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
| | - Gabriela Carrasco-Puga
- ANID Millennium Institute Center for Genome Regulation and ANID Millennium Institute for Integrative Biology (iBio), Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile
| | - Sophie Colombié
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Sylvain Prigent
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Guillaume Decros
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
| | - Stéphane Bernillon
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Cédric Cassan
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Amélie Flandin
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Pablo C Guerrero
- Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 7800003, Concepción, Chile
- Instituto Milenio Biodiversidad de Ecosistemas Antárticos y Subantárticos, 8331150, Santiago, Chile
| | - Yves Gibon
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Dominique Rolin
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Lohengrin A Cavieres
- Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 7800003, Concepción, Chile
| | - Pierre Pétriacq
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Claudio Latorre
- Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile
- Departamento de Ecología, Pontificia Universidad Católica de Chile, Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile
| | - Rodrigo A Gutiérrez
- Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile
- ANID Millennium Institute Center for Genome Regulation and ANID Millennium Institute for Integrative Biology (iBio), Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile
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Hernández-Fuentes C, Galmés J, Bravo LA, Cavieres LA. Elevation provenance affects photosynthesis and its acclimation to temperature in the high-Andes alpine herb Phacelia secunda. Plant Biol (Stuttg) 2023. [PMID: 37191464 DOI: 10.1111/plb.13539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 05/07/2023] [Indexed: 05/17/2023]
Abstract
We analyzed whether Phacelia secunda populations from different elevations exhibit intrinsic traits associated with its diffusive and biochemical components of photosynthesis and if they differ in their acclimation of photosynthesis to warmer temperatures. We hypothesized that P. secunda plants will have similar photosynthetic performances regardless of altitudinal provenance and that plants from high elevations have a lower photosynthetic acclimation capacity to higher temperature than plants from low elevation. Plants from 1600, 2800 and 3600 m elevation in the central Chilean Andes were collected and grown at two thermal regimes (20/16 and 30/26°C day/night). The following photosynthetic traits were measured on each plant at the different growing temperatures: AN , gs , gm , Jmax , Vcmax , Rubisco carboxylation kcat c . Under a common growing environment, plants from the highest elevation showed slightly lower CO2 assimilation rates compared to lower elevations plants. While diffusive components of photosynthesis increased with elevation provenance, the biochemical component decreased, suggesting compensations that explain the similar photosynthetic rates among elevation provenances. Plants from high elevations showed lower photosynthetic acclimation to warmer temperatures compared to plants from low elevation, and these responses were related with elevational changes in diffusional and biochemical components of photosynthesis. Plants of P. secunda from different elevations maintain their photosynthetic traits when growing in a common environment suggesting low plasticity to respond to future climate changes. The fact that plants from high elevation showed lower photosynthetic acclimation to warmer temperature suggest a higher susceptibility to the increase in temperature associated with global warming.
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Affiliation(s)
- C Hernández-Fuentes
- Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
- Current address: Bioforest S.A., Chile
| | - J Galmés
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterrànies, Universitat de les Illes Balears-INAGEA, Carretera de Valldemossa Km 7.5, 07122, Palma, Spain
| | - L A Bravo
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Agroindustria, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Medioambiente & Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus. Universidad de La Frontera, Casilla 54D, Temuco, Chile
| | - L A Cavieres
- Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
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Irimia RE, Montesinos D, Chaturvedi A, Sanders I, Hierro JL, Sotes G, Cavieres LA, Eren Ö, Lortie CJ, French K, Brennan AC. Trait evolution during a rapid global weed invasion despite little genetic differentiation. Evol Appl 2023; 16:997-1011. [PMID: 37216028 PMCID: PMC10197227 DOI: 10.1111/eva.13548] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/12/2023] [Accepted: 03/23/2023] [Indexed: 05/24/2023] Open
Abstract
Invasive species often possess a great capacity to adapt to novel environments in the form of spatial trait variation, as a result of varying selection regimes, genetic drift, or plasticity. We explored the geographic differentiation in several phenotypic traits related to plant growth, reproduction, and defense in the highly invasive Centaurea solstitialis by measuring neutral genetic differentiation (F ST), and comparing it with phenotypic differentiation (P ST), in a common garden experiment in individuals originating from regions representing the species distribution across five continents. Native plants were more fecund than non-native plants, but the latter displayed considerably larger seed mass. We found indication of divergent selection for these two reproductive traits but little overall genetic differentiation between native and non-native ranges. The native versus invasive P ST-F ST comparisons demonstrated that, in several invasive regions, seed mass had increased proportionally more than the genetic differentiation. Traits displayed different associations with climate variables in different regions. Both capitula numbers and seed mass were associated with winter temperature and precipitation and summer aridity in some regions. Overall, our study suggests that rapid evolution has accompanied invasive success of C. solstitialis and provides new insights into traits and their genetic bases that can contribute to fitness advantages in non-native populations.
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Affiliation(s)
- Ramona E. Irimia
- Centre for Functional Ecology, Department of Life SciencesUniversity of CoimbraCoimbraPortugal
- Plant Evolutionary Ecology, Institute of Evolution and EcologyUniversity of TübingenTübingenGermany
| | - Daniel Montesinos
- Centre for Functional Ecology, Department of Life SciencesUniversity of CoimbraCoimbraPortugal
- Australian Tropical HerbariumJames Cook UniversityQueenslandCairnsAustralia
| | - Anurag Chaturvedi
- Department of Ecology and EvolutionUniversity of LausanneLausanneSwitzerland
- Environmental Genomics Group, School of BiosciencesUniversity of BirminghamBirminghamUK
| | - Ian Sanders
- Department of Ecology and EvolutionUniversity of LausanneLausanneSwitzerland
| | - José L. Hierro
- Laboratorio de Ecología, Biogeografía y Evolución Vegetal (LEByEV), Instituto de Ciencias de la Tierra y Ambientales de La Pampa (INCITAP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Universidad Nacional de La Pampa (UNLPam)Santa RosaArgentina
- Departamento de Biología, Facultad de Ciencias Exactas y Naturales, UNLPamSanta RosaArgentina
| | - Gastón Sotes
- Laboratorio de Ecología, Biogeografía y Evolución Vegetal (LEByEV), Instituto de Ciencias de la Tierra y Ambientales de La Pampa (INCITAP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Universidad Nacional de La Pampa (UNLPam)Santa RosaArgentina
| | - Lohengrin A. Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y OceanográficasUniversidad de ConcepciónConcepciónChile
- Instituto de Ecología y Biodiversidad (IEB)SantiagoChile
| | - Özkan Eren
- Aydın Adnan Menderes Üniversitesi, Biyoloji Bölümü, Fen‐Edebiyat FakültesiAydınTurkey
| | - Christopher J. Lortie
- Department of BiologyYork UniversityOntarioTorontoCanada
- The National Center for Ecological Analysis and Synthesis (NCEAS), UCSBCaliforniaUSA
| | - Kristine French
- School of Earth, Atmospheric and Life SciencesUniversity of WollongongNew South WalesWollongongAustralia
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Mandakovic D, Aguado-Norese C, García-Jiménez B, Hodar C, Maldonado JE, Gaete A, Latorre M, Wilkinson MD, Gutiérrez RA, Cavieres LA, Medina J, Cambiazo V, Gonzalez M. Testing the stress gradient hypothesis in soil bacterial communities associated with vegetation belts in the Andean Atacama Desert. Environ Microbiome 2023; 18:24. [PMID: 36978149 PMCID: PMC10052861 DOI: 10.1186/s40793-023-00486-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Soil microorganisms are in constant interaction with plants, and these interactions shape the composition of soil bacterial communities by modifying their environment. However, little is known about the relationship between microorganisms and native plants present in extreme environments that are not affected by human intervention. Using high-throughput sequencing in combination with random forest and co-occurrence network analyses, we compared soil bacterial communities inhabiting the rhizosphere surrounding soil (RSS) and the corresponding bulk soil (BS) of 21 native plant species organized into three vegetation belts along the altitudinal gradient (2400-4500 m a.s.l.) of the Talabre-Lejía transect (TLT) in the slopes of the Andes in the Atacama Desert. We assessed how each plant community influenced the taxa, potential functions, and ecological interactions of the soil bacterial communities in this extreme natural ecosystem. We tested the ability of the stress gradient hypothesis, which predicts that positive species interactions become increasingly important as stressful conditions increase, to explain the interactions among members of TLT soil microbial communities. RESULTS Our comparison of RSS and BS compartments along the TLT provided evidence of plant-specific microbial community composition in the RSS and showed that bacterial communities modify their ecological interactions, in particular, their positive:negative connection ratios in the presence of plant roots at each vegetation belt. We also identified the taxa driving the transition of the BS to the RSS, which appear to be indicators of key host-microbial relationships in the rhizosphere of plants in response to different abiotic conditions. Finally, the potential functions of the bacterial communities also diverge between the BS and the RSS compartments, particularly in the extreme and harshest belts of the TLT. CONCLUSIONS In this study, we identified taxa of bacterial communities that establish species-specific relationships with native plants and showed that over a gradient of changing abiotic conditions, these relationships may also be plant community specific. These findings also reveal that the interactions among members of the soil microbial communities do not support the stress gradient hypothesis. However, through the RSS compartment, each plant community appears to moderate the abiotic stress gradient and increase the efficiency of the soil microbial community, suggesting that positive interactions may be context dependent.
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Affiliation(s)
- Dinka Mandakovic
- Millennium Institute Center for Genome Regulation, Santiago, Chile
- Bioinformatic and Gene Expression Laboratory, INTA-Universidad de Chile, Santiago, Chile
- GEMA Center for Genomics, Ecology and Environment, Universidad Mayor, Santiago, Chile
| | - Constanza Aguado-Norese
- Millennium Institute Center for Genome Regulation, Santiago, Chile
- Bioinformatic and Gene Expression Laboratory, INTA-Universidad de Chile, Santiago, Chile
| | - Beatriz García-Jiménez
- Center for Plant Biotechnology and Genomics, Universidad Politécnica de Madrid (UPM)/Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)-CSIC, Madrid, Spain
- Present Address: Biome Makers Inc., West Sacramento, CA USA
| | - Christian Hodar
- Millennium Institute Center for Genome Regulation, Santiago, Chile
- Bioinformatic and Gene Expression Laboratory, INTA-Universidad de Chile, Santiago, Chile
| | - Jonathan E. Maldonado
- Millennium Institute Center for Genome Regulation, Santiago, Chile
- Bioinformatic and Gene Expression Laboratory, INTA-Universidad de Chile, Santiago, Chile
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, 9170022 Santiago, Chile
| | - Alexis Gaete
- Millennium Institute Center for Genome Regulation, Santiago, Chile
- Bioinformatic and Gene Expression Laboratory, INTA-Universidad de Chile, Santiago, Chile
| | - Mauricio Latorre
- Millennium Institute Center for Genome Regulation, Santiago, Chile
- Laboratorio de Bioingeniería, Instituto de Ciencias de La Ingeniería, Universidad de O’Higgins, Rancagua, Chile
| | - Mark D. Wilkinson
- Center for Plant Biotechnology and Genomics, Universidad Politécnica de Madrid (UPM)/Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)-CSIC, Madrid, Spain
| | - Rodrigo A. Gutiérrez
- Millennium Institute Center for Genome Regulation, Santiago, Chile
- Instituto de Biología Integrativa, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Lohengrin A. Cavieres
- Instituto de Ecología y Biodiversidad (IEB), 4070386 Concepción, Chile
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 4070386 Concepción, Chile
| | - Joaquín Medina
- Center for Plant Biotechnology and Genomics, Universidad Politécnica de Madrid (UPM)/Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)-CSIC, Madrid, Spain
| | - Verónica Cambiazo
- Millennium Institute Center for Genome Regulation, Santiago, Chile
- Bioinformatic and Gene Expression Laboratory, INTA-Universidad de Chile, Santiago, Chile
| | - Mauricio Gonzalez
- Millennium Institute Center for Genome Regulation, Santiago, Chile
- Bioinformatic and Gene Expression Laboratory, INTA-Universidad de Chile, Santiago, Chile
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van den Brink L, Canessa R, Neidhardt H, Knüver T, Rios RS, Saldaña A, Cavieres LA, Oelmann Y, Bader MY, Tielbörger K. No home‐field advantage in litter decomposition from the desert to temperate forest. Funct Ecol 2023. [DOI: 10.1111/1365-2435.14285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Liesbeth van den Brink
- Plant Ecology Group University of Tübingen Auf der Morgenstelle 5, 72076 Tübingen Germany
| | - Rafaella Canessa
- Plant Ecology Group University of Tübingen Auf der Morgenstelle 5, 72076 Tübingen Germany
- Ecological Plant Geography, Faculty of Geography University of Marburg Deutschhausstrasse 10, 35032 Marburg Germany
| | - Harald Neidhardt
- Geoecology, Department of Geosciences University Tübingen Germany
| | - Timo Knüver
- Geoecology, Department of Geosciences University Tübingen Germany
- Ecophysiology, Department of Botany University of Innsbruck Austria
| | - Rodrigo S. Rios
- Departamento de Biología, Universidad de La Serena, Casilla 554 La Serena Chile
- Instituto Multidisciplinario de Investigación en Ciencia y Tecnología, Universidad de La Serena La Serena Chile
| | - Alfredo Saldaña
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160‐C Concepción Chile
| | - Lohengrin A. Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160‐C Concepción Chile
- Institute of Ecology and Biodiversity (IEB) Santiago Chile
| | - Yvonne Oelmann
- Geoecology, Department of Geosciences University Tübingen Germany
| | - Maaike Y. Bader
- Ecological Plant Geography, Faculty of Geography University of Marburg Deutschhausstrasse 10, 35032 Marburg Germany
| | - Katja Tielbörger
- Plant Ecology Group University of Tübingen Auf der Morgenstelle 5, 72076 Tübingen Germany
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8
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Parada-Pozo G, Bravo LA, Sáez PL, Cavieres LA, Reyes-Díaz M, Abades S, Alfaro FD, De la Iglesia R, Trefault N. Vegetation drives the response of the active fraction of the rhizosphere microbial communities to soil warming in Antarctic vascular plants. FEMS Microbiol Ecol 2022; 98:6679102. [PMID: 36040342 DOI: 10.1093/femsec/fiac099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 08/11/2022] [Accepted: 08/27/2022] [Indexed: 01/21/2023] Open
Abstract
In the Antarctic Peninsula, increases in mean annual temperature are associated with the coverage and population density of the two Antarctic vascular plant species-Deschampsia antarctica and Colobanthus quitensis-potentially modifying critical soil processes. In this study, we characterized the diversity and community composition of active microorganisms inhabiting the vascular plant rhizosphere in two sites with contrasting vegetation cover in King George Island, Western Antarctic Peninsula. We assessed the interplay between soil physicochemical properties and microbial diversity and composition, evaluating the effect of an in situ experimental warming on the microbial communities of the rhizosphere from D. antarctica and C. quitensis. Bacteria and Eukarya showed different responses to warming in both sites, and the effect was more noticeable in microbial eukaryotes from the low vegetation site. Furthermore, important changes were found in the relative abundance of Tepidisphaerales (Bacteria) and Ciliophora (Eukarya) between warming and control treatments. Our results showed that rhizosphere eukaryal communities are more sensitive to in situ warming than bacterial communities. Overall, our results indicate that vegetation drives the response of the active fraction of the microbial communities from the rhizosphere of Antarctic vascular plants to soil warming.
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Affiliation(s)
- Génesis Parada-Pozo
- Centro GEMA-Genómica, Ecología & Medio Ambiente, Facultad de Ciencias, Universidad Mayor, 8580745, Santiago, Chile
| | - León A Bravo
- Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Medioambiente, Universidad de la Frontera. 4811230, Temuco, Chile
| | - Patricia L Sáez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, 4070386, Chile.,Instituto de Ecología y Biodiversidad (IEB), 775000, Santiago, Chile
| | - Lohengrin A Cavieres
- Instituto de Ecología y Biodiversidad (IEB), 775000, Santiago, Chile.,Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, 4070386, Chile
| | - Marjorie Reyes-Díaz
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, 4811230, Chile.,Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco, 4811230, Chile
| | - Sebastián Abades
- Centro GEMA-Genómica, Ecología & Medio Ambiente, Facultad de Ciencias, Universidad Mayor, 8580745, Santiago, Chile
| | - Fernando D Alfaro
- Centro GEMA-Genómica, Ecología & Medio Ambiente, Facultad de Ciencias, Universidad Mayor, 8580745, Santiago, Chile
| | - Rodrigo De la Iglesia
- Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Santiago, 8320000, Chile
| | - Nicole Trefault
- Centro GEMA-Genómica, Ecología & Medio Ambiente, Facultad de Ciencias, Universidad Mayor, 8580745, Santiago, Chile
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9
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Rivera BK, Sáez PL, Cavieres LA, Capó-Bauçà S, Iñiguez C, Sanfuentes von Stowasser E, Fuentes F, Ramírez CF, Vallejos V, Galmés J. Anatomical and biochemical evolutionary ancient traits of Araucaria araucana (Molina) K. Koch and their effects on carbon assimilation. Tree Physiol 2022; 42:1957-1974. [PMID: 35604362 DOI: 10.1093/treephys/tpac057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
The study of ancient species provides valuable information concerning the evolution of specific adaptations to past and current environmental conditions. Araucaria araucana (Molina) K. Koch belongs to one of the oldest families of conifers in the world, but despite this, there are few studies focused on its physiology and responses to changes in environmental conditions. We used an integrated approach aimed at comprehensively characterizing the ecophysiology of this poorly known species, focusing in its stomatal, mesophyll and biochemical traits, hypothesizing that these traits govern the carbon assimilation of A. araucana under past and present levels of atmospheric CO2. Results indicated that A. araucana presents the typical traits of an ancient species, such as large stomata and low stomatal density, which trigger low stomatal conductance and slow stomatal responsiveness to changing environmental conditions. Interestingly, the quantitative analysis showed that photosynthetic rates were equally limited by both diffusive and biochemical components. The Rubisco catalytic properties proved to have a low Rubisco affinity for CO2 and O2, similar to other ancient species. This affinity for CO2, together with the low carboxylation turnover rate, are responsible for the low Rubisco catalytic efficiency of carboxylation. These traits could be the result of the diverse environmental selective pressures that A. araucana was exposed during its diversification. The increase in measured temperatures induced an increase in stomatal and biochemical limitations, which together with a lower Rubisco affinity for CO2 could explain the low photosynthetic capacity of A. araucana in warmer conditions.
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Affiliation(s)
- Betsy K Rivera
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción 4030000, Chile
| | - Patricia L Sáez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción 4030000, Chile
- Instituto de Ecología y Biodiversidad (IEB), Santiago 8320000, Chile
| | - Lohengrin A Cavieres
- Instituto de Ecología y Biodiversidad (IEB), Santiago 8320000, Chile
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción 4030000, Chile
| | - Sebastià Capó-Bauçà
- Research Group on Plant Biology under Mediterranean Conditions, INAGEA-Universitat de les Illes Balears, Balearic Islands 07122, Spain
| | - Concepción Iñiguez
- Research Group on Plant Biology under Mediterranean Conditions, INAGEA-Universitat de les Illes Balears, Balearic Islands 07122, Spain
| | - Eugenio Sanfuentes von Stowasser
- Laboratorio de Patología Forestal, Facultad Ciencias Forestales y Centro de Biotecnología, Universidad de Concepción, Concepción 4030000, Chile
| | - Francisca Fuentes
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción 4030000, Chile
| | - Constanza F Ramírez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción 4030000, Chile
| | - Valentina Vallejos
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción 4030000, Chile
| | - Jeroni Galmés
- Research Group on Plant Biology under Mediterranean Conditions, INAGEA-Universitat de les Illes Balears, Balearic Islands 07122, Spain
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10
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Yang X, Gómez-Aparicio L, Lortie CJ, Verdú M, Cavieres LA, Huang Z, Gao R, Liu R, Zhao Y, Cornelissen JHC. Net plant interactions are highly variable and weakly dependent on climate at the global scale. Ecol Lett 2022; 25:1580-1593. [PMID: 35460586 DOI: 10.1111/ele.14010] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/02/2022] [Accepted: 03/28/2022] [Indexed: 11/27/2022]
Abstract
Although plant-plant interactions (i.e. competition and facilitation) have long been recognised as key drivers of plant community composition and dynamics, their global patterns and relationships with climate have remained unclear. Here, we assembled a global database of 10,502 pairs of empirical data from the literature to address the patterns of and climatic effects on the net outcome of plant interactions in natural communities. We found that plant interactions varied among plant performance indicators, interaction types and biomes, yet competition occurred more frequently than facilitation in plant communities worldwide. Unexpectedly, plant interactions showed weak latitudinal pattern and were weakly related to climate. Our study provides a global comprehensive overview of plant interactions, highlighting competition as a fundamental mechanism structuring plant communities worldwide. We suggest that further investigations should focus more on local factors (e.g. microclimate, soil and disturbance) than on macroclimate to identify key environmental determinants of interactions in plant communities.
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Affiliation(s)
- Xuejun Yang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | | | | | - Miguel Verdú
- Department of Plant Ecology, Centro de Investigaciones sobre Desertificación, CSIC-UVEG-GV), Valencia, Spain
| | - Lohengrin A Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile.,Instituto de Ecología y Biodiversidad - IEB, Santiago, Chile
| | - Zhenying Huang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Ruiru Gao
- The School of Life Sciences, Shanxi Normal University, Shanxi, Linfen, China
| | - Rong Liu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Yonglan Zhao
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
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11
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Bustamante RO, Quiñones D, Duarte M, Goncalves E, Cavieres LA. Invasive Stages within Alien Species and Hutchinson’s Duality: An Example Using Invasive Plants of the Family Fabaceae in Central Chile. Plants 2022; 11:plants11081063. [PMID: 35448793 PMCID: PMC9029910 DOI: 10.3390/plants11081063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/04/2022] [Accepted: 04/09/2022] [Indexed: 11/25/2022]
Abstract
To understand the factors that limit invasive expansion in alien species, it is critical to predict potential zones of colonization. Climatic niche can be an important way to predict the potential distribution of alien species. This correlation between niche and geographic distribution is called Hutchinson’s duality. A combination of global and regional niches allows four invasive stages to be identified: quasi-equilibrium, local adaptation, colonization and sink stage. We studied the invasive stages of six alien leguminous species either in the niche or the geographical space. In five of the six species, a higher proportion of populations were in the quasi-equilibrium stage. Notably, Acacia species had the highest proportion of populations in local adaptation. This picture changed dramatically when we projected the climatic niche in the geographic space: in all species the colonization stage had the highest proportional projected area, ranging from 50 to 90%. Our results are consistent with Hutchinson’s duality, which predicts that small areas in the niche space can be translated onto large areas of the geographic space. Although the colonization stage accounted for a low proportion of occurrences, in all species, the models predicted the largest areas for this stage. This study complements invasive stages, projecting them in geographic space.
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Affiliation(s)
- Ramiro O. Bustamante
- Laboratorio de Ecología Geográfica, Facultad de Ciencias, Universidad de Chile, Santiago 775000, Chile; (D.Q.); (M.D.); (E.G.)
- Instituto de Ecología y Biodiversidad (IEB), Santiago 775000, Chile;
- Correspondence:
| | - Daniela Quiñones
- Laboratorio de Ecología Geográfica, Facultad de Ciencias, Universidad de Chile, Santiago 775000, Chile; (D.Q.); (M.D.); (E.G.)
| | - Milen Duarte
- Laboratorio de Ecología Geográfica, Facultad de Ciencias, Universidad de Chile, Santiago 775000, Chile; (D.Q.); (M.D.); (E.G.)
- Instituto de Ecología y Biodiversidad (IEB), Santiago 775000, Chile;
| | - Estefany Goncalves
- Laboratorio de Ecología Geográfica, Facultad de Ciencias, Universidad de Chile, Santiago 775000, Chile; (D.Q.); (M.D.); (E.G.)
- Instituto de Ecología y Biodiversidad (IEB), Santiago 775000, Chile;
| | - Lohengrin A. Cavieres
- Instituto de Ecología y Biodiversidad (IEB), Santiago 775000, Chile;
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción 4091124, Chile
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12
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Haider S, Lembrechts JJ, McDougall K, Pauchard A, Alexander JM, Barros A, Cavieres LA, Rashid I, Rew LJ, Aleksanyan A, Arévalo JR, Aschero V, Chisholm C, Clark VR, Clavel J, Daehler C, Dar PA, Dietz H, Dimarco RD, Edwards P, Essl F, Fuentes‐Lillo E, Guisan A, Gwate O, Hargreaves AL, Jakobs G, Jiménez A, Kardol P, Kueffer C, Larson C, Lenoir J, Lenzner B, Padrón Mederos MA, Mihoc M, Milbau A, Morgan JW, Müllerová J, Naylor BJ, Nijs I, Nuñez MA, Otto R, Preuk N, Ratier Backes A, Reshi ZA, Rumpf SB, Sandoya V, Schroder M, Speziale KL, Urbach D, Valencia G, Vandvik V, Vitková M, Vorstenbosch T, Walker TWN, Walsh N, Wright G, Zong S, Seipel T. Think globally, measure locally: The MIREN standardized protocol for monitoring plant species distributions along elevation gradients. Ecol Evol 2022; 12:e8590. [PMID: 35222963 PMCID: PMC8844121 DOI: 10.1002/ece3.8590] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 11/30/2021] [Accepted: 01/14/2022] [Indexed: 11/25/2022] Open
Abstract
Climate change and other global change drivers threaten plant diversity in mountains worldwide. A widely documented response to such environmental modifications is for plant species to change their elevational ranges. Range shifts are often idiosyncratic and difficult to generalize, partly due to variation in sampling methods. There is thus a need for a standardized monitoring strategy that can be applied across mountain regions to assess distribution changes and community turnover of native and non‐native plant species over space and time. Here, we present a conceptually intuitive and standardized protocol developed by the Mountain Invasion Research Network (MIREN) to systematically quantify global patterns of native and non‐native species distributions along elevation gradients and shifts arising from interactive effects of climate change and human disturbance. Usually repeated every five years, surveys consist of 20 sample sites located at equal elevation increments along three replicate roads per sampling region. At each site, three plots extend from the side of a mountain road into surrounding natural vegetation. The protocol has been successfully used in 18 regions worldwide from 2007 to present. Analyses of one point in time already generated some salient results, and revealed region‐specific elevational patterns of native plant species richness, but a globally consistent elevational decline in non‐native species richness. Non‐native plants were also more abundant directly adjacent to road edges, suggesting that disturbed roadsides serve as a vector for invasions into mountains. From the upcoming analyses of time series, even more exciting results can be expected, especially about range shifts. Implementing the protocol in more mountain regions globally would help to generate a more complete picture of how global change alters species distributions. This would inform conservation policy in mountain ecosystems, where some conservation policies remain poorly implemented.
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Affiliation(s)
- Sylvia Haider
- Institute of Biology/Geobotany and Botanical Garden Martin Luther University Halle‐Wittenberg Halle Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
| | - Jonas J. Lembrechts
- Research group Plants and Ecosystems (PLECO) University of Antwerp Wilrijk Belgium
| | - Keith McDougall
- Department of Planning, Industry and Environment Queanbeyan New South Wales Australia
| | - Aníbal Pauchard
- Laboratorio de Invasiones Biologicas (LIB) Facultad de Ciencias Forestales Universidad de Concepción Concepción Chile
- Institute of Ecology and Biodiversity (IEB) Santiago Chile
| | | | - Agustina Barros
- Instituto Argentino de Nivología y Glaciología y Ciencias Ambientales (IANIGLA) Centro Científico Tecnológico (CCT) CONICET Mendoza Mendoza Argentina
| | - Lohengrin A. Cavieres
- Institute of Ecology and Biodiversity (IEB) Santiago Chile
- Departamento de Botánica Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción Concepción Chile
| | - Irfan Rashid
- Department of Botany University of Kashmir Srinagar India
| | - Lisa J. Rew
- Department of Land Resource and Environmental Sciences Montana State University Bozeman Montana USA
| | - Alla Aleksanyan
- Department of Geobotany and Plant Ecophysiology Institute of Botany aft. A.L. Takhtajyan NAS RA Yerevan Armenia
- Chair of Biology and Biotechnologies Armenian National Agrarian University Yerevan Armenia
| | - José R. Arévalo
- Department of Botany, Ecology and Plant Physiology University of La Laguna La Laguna Spain
| | - Valeria Aschero
- Instituto Argentino de Nivología y Glaciología y Ciencias Ambientales (IANIGLA) Centro Científico Tecnológico (CCT) CONICET Mendoza Mendoza Argentina
| | | | - V. Ralph Clark
- Afromontane Research Unit & Department of Geography University of the Free State: Qwaqwa Campus Phuthaditjhaba South Africa
| | - Jan Clavel
- Research group Plants and Ecosystems (PLECO) University of Antwerp Wilrijk Belgium
| | - Curtis Daehler
- School of Life Sciences University of Hawai'i at Manoa Honolulu Hawaii USA
| | | | - Hansjörg Dietz
- Institute of Integrative Biology ETH Zürich Zürich Switzerland
| | - Romina D. Dimarco
- Grupo de Ecología de Poblaciones de Insectos IFAB (INTA‐CONICET) Bariloche Argentina
- Department of Biology and Biochemistry University of Houston Houston Texas USA
| | - Peter Edwards
- Institute of Integrative Biology ETH Zürich Zürich Switzerland
| | - Franz Essl
- Bioinvasions, Global Change, Macroecology Group Department of Botany and Biodiversity Research University of Vienna Vienna Austria
| | - Eduardo Fuentes‐Lillo
- Research group Plants and Ecosystems (PLECO) University of Antwerp Wilrijk Belgium
- Laboratorio de Invasiones Biologicas (LIB) Facultad de Ciencias Forestales Universidad de Concepción Concepción Chile
- Institute of Ecology and Biodiversity (IEB) Santiago Chile
- School of Education and Social Sciences Adventist University of Chile Chillán Chile
| | - Antoine Guisan
- Institute of Earth Surface Dynamics & Department of Ecology and Evolution University of Lausanne Lausanne Switzerland
| | - Onalenna Gwate
- Afromontane Research Unit & Department of Geography University of the Free State: Qwaqwa Campus Phuthaditjhaba South Africa
| | | | - Gabi Jakobs
- Institute of Integrative Biology ETH Zürich Zürich Switzerland
| | - Alejandra Jiménez
- Laboratorio de Invasiones Biologicas (LIB) Facultad de Ciencias Forestales Universidad de Concepción Concepción Chile
- Institute of Ecology and Biodiversity (IEB) Santiago Chile
| | - Paul Kardol
- Department of Forest Ecology and Management Swedish University of Agricultural Sciences Umeå Sweden
| | - Christoph Kueffer
- Institute of Integrative Biology ETH Zürich Zürich Switzerland
- Department of Botany and Zoology Centre for Invasion Biology Stellenbosch University Matieland South Africa
| | - Christian Larson
- Department of Land Resource and Environmental Sciences Montana State University Bozeman Montana USA
| | - Jonathan Lenoir
- UR “Ecologie et Dynamique des Systèmes Anthropisés” (EDYSAN UMR 7058 CNRS) Université de Picardie Jules Verne Amiens France
| | - Bernd Lenzner
- Bioinvasions, Global Change, Macroecology Group Department of Botany and Biodiversity Research University of Vienna Vienna Austria
| | | | - Maritza Mihoc
- Institute of Ecology and Biodiversity (IEB) Santiago Chile
- Departamento de Botánica Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción Concepción Chile
| | - Ann Milbau
- Research Institute for Nature and Forest – INBO Brussels Belgium
| | - John W. Morgan
- Department of Ecology Environment and Evolution La Trobe University Bundoora Victoria Australia
| | - Jana Müllerová
- Department of GIS and Remote Sensing Institute of Botany of the Czech Academy of Sciences Průhonice Czech Republic
| | | | - Ivan Nijs
- Research group Plants and Ecosystems (PLECO) University of Antwerp Wilrijk Belgium
| | - Martin A. Nuñez
- Department of Biology and Biochemistry University of Houston Houston Texas USA
- Grupo Ecología de Invasiones Instituto de Investigaciones en Biodiversidad y Medio Ambiente CONICET ‐ Universidad Nacional del Comahue Bariloche Argentina
| | - Rüdiger Otto
- Department of Botany, Ecology and Plant Physiology University of La Laguna La Laguna Spain
| | - Niels Preuk
- Institute of Biology/Geobotany and Botanical Garden Martin Luther University Halle‐Wittenberg Halle Germany
| | - Amanda Ratier Backes
- Institute of Biology/Geobotany and Botanical Garden Martin Luther University Halle‐Wittenberg Halle Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
| | - Zafar A. Reshi
- Department of Botany University of Kashmir Srinagar India
| | - Sabine B. Rumpf
- Department of Ecology and Evolution University of Lausanne Lausanne Switzerland
- Department of Environmental Sciences University of Basel Basel Switzerland
| | - Verónica Sandoya
- School of Life Sciences and Biotechnology Yachay Tech University Urcuquí Ecuador
- CREAF Cerdanyola del Vallès Spain
- Unitat d'Ecologia Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | - Mellesa Schroder
- Department of Planning, Industry and Environment Jindabyne New South Wales Australia
| | | | - Davnah Urbach
- Global Mountain Biodiversity Assessment Institute of Plant Sciences University of Bern Bern Switzerland
| | - Graciela Valencia
- Institute of Ecology and Biodiversity (IEB) Santiago Chile
- Departamento de Botánica Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción Concepción Chile
| | - Vigdis Vandvik
- Department of Biological Sciences University of Bergen Bergen Norway
| | - Michaela Vitková
- Department of Invasion Ecology Institute of Botany of the Czech Academy of Sciences Průhonice Czech Republic
| | - Tom Vorstenbosch
- Bioinvasions, Global Change, Macroecology Group Department of Botany and Biodiversity Research University of Vienna Vienna Austria
- Institute of Biology Leiden Leiden University Leiden The Netherlands
| | - Tom W. N. Walker
- Institute of Integrative Biology ETH Zürich Zürich Switzerland
- Institute of Biology University of Neuchâtel Neuchâtel Switzerland
| | - Neville Walsh
- Royal Botanic Gardens Victoria Melbourne Victoria Australia
| | - Genevieve Wright
- Department of Planning, Industry and Environment NSW Government, Biodiversity and Conservation Queanbeyan New South Wales Australia
| | - Shengwei Zong
- Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains Ministry of Education School of Geographical Sciences Northeast Normal University Changchun China
| | - Tim Seipel
- Department of Land Resource and Environmental Sciences Montana State University Bozeman Montana USA
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13
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Fuentes-Lillo E, Lembrechts JJ, Cavieres LA, Jiménez A, Haider S, Barros A, Pauchard A. Anthropogenic factors overrule local abiotic variables in determining non-native plant invasions in mountains. Biol Invasions 2021. [DOI: 10.1007/s10530-021-02602-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Fernández-Pascual E, Carta A, Mondoni A, Cavieres LA, Rosbakh S, Venn S, Satyanti A, Guja L, Briceño VF, Vandelook F, Mattana E, Saatkamp A, Bu H, Sommerville K, Poschlod P, Liu K, Nicotra A, Jiménez-Alfaro B. The seed germination spectrum of alpine plants: a global meta-analysis. New Phytol 2021; 229:3573-3586. [PMID: 33205452 DOI: 10.1111/nph.17086] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/11/2020] [Indexed: 06/11/2023]
Abstract
Assumptions about the germination ecology of alpine plants are presently based on individual species and local studies. A current challenge is to synthesise, at the global level, the alpine seed ecological spectrum. We performed a meta-analysis of primary data from laboratory experiments conducted across four continents (excluding the tropics) and 661 species, to estimate the influence of six environmental cues on germination proportion, mean germination time and germination synchrony; accounting for seed morphology (mass, embryo : seed ratio) and phylogeny. Most alpine plants show physiological seed dormancy, a strong need for cold stratification, warm-cued germination and positive germination responses to light and alternating temperatures. Species restricted to the alpine belt have a higher preference for warm temperatures and a stronger response to cold stratification than species whose distribution extends also below the treeline. Seed mass, embryo size and phylogeny have strong constraining effects on germination responses to the environment. Globally, overwintering and warm temperatures are key drivers of germination in alpine habitats. The interplay between germination physiology and seed morphological traits further reflects pressures to avoid frost or drought stress. Our results indicate the convergence, at the global level, of the seed germination patterns of alpine species.
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Affiliation(s)
| | - Angelino Carta
- Dipartimento di Biologia, Botany Unit, University of Pisa, Pisa, 56126, Italy
| | - Andrea Mondoni
- Department of Earth and Environmental Sciences, University of Pavia, Pavia, 27100, Italy
| | - Lohengrin A Cavieres
- Departamento de Botánica|Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, 4070386, Chile
- Chile and Institute of Ecology and Biodiversity (IEB), Santiago, Chile
| | - Sergey Rosbakh
- Chair of Ecology and Conservation Biology, Institute of Plant Sciences, University of Regensburg, Regensburg, 93053, Germany
| | - Susanna Venn
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Burwood, Victoria, 3125, Australia
| | - Annisa Satyanti
- Division of Ecology & Evolution, Research School of Biology, The Australian National University, Canberra, ACT, 2600, Australia
| | - Lydia Guja
- Centre for Australian National Biodiversity Research, a joint venture between Parks Australia and CSIRO, Canberra, ACT, 2601, Australia
- National Seed Bank, Australian National Botanic Gardens, Canberra, ACT, 2601, Australia
| | | | | | - Efisio Mattana
- Natural Capital and Plant Health Department, Royal Botanic Gardens, Kew, Ardingly, RH17 6TN, UK
| | - Arne Saatkamp
- Aix Marseille Université, Université d'Avignon, CNRS, IRD, IMBE, Facultés St Jérôme, case 421, Marseille, 13397, France
| | - Haiyan Bu
- State Key Laboratory of Grassland Agro-Ecosystems, Lanzhou University, Lanzhou, 730000, China
| | - Karen Sommerville
- The Australian PlantBank, Australian Institute of Botanical Science, The Royal Botanic Gardens & Domain Trust, Mount Annan, NSW, 2567, Australia
| | - Peter Poschlod
- Chair of Ecology and Conservation Biology, Institute of Plant Sciences, University of Regensburg, Regensburg, 93053, Germany
| | - Kun Liu
- State Key Laboratory of Grassland Agro-Ecosystems, Lanzhou University, Lanzhou, 730000, China
| | - Adrienne Nicotra
- Division of Ecology & Evolution, Research School of Biology, The Australian National University, Canberra, ACT, 2600, Australia
| | - Borja Jiménez-Alfaro
- Research Unit of Biodiversity (CSUC/UO/PA), University of Oviedo, Mieres, 33600, Spain
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15
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Reyes-Bahamonde C, Piper FI, Cavieres LA. Carbon allocation to growth and storage depends on elevation provenance in an herbaceous alpine plant of Mediterranean climate. Oecologia 2021; 195:299-312. [PMID: 33459865 DOI: 10.1007/s00442-020-04839-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 12/17/2020] [Indexed: 11/30/2022]
Abstract
It is unclear whether the frequently observed increase in non-structural carbohydrates (NSC) in plants exposed to low temperatures or drought reflects a higher sensitivity of growth than photosynthesis in such conditions (i.e. sink limitation), or a prioritization of carbon (C) allocation to storage. Alpine areas in Mediterranean-type climate regions are characterized by precipitation increases and temperature decreases with elevation. Thus, alpine plants with wide elevational ranges in Mediterranean regions may be good models to examine these alternative hypotheses. We evaluated storage and growth during experimental darkness and re-illumination in individuals of the alpine plant Phacelia secunda from three elevations in the Andes of central Chile. We hypothesized that storage is prioritized regarding growth in plants of both low- and high elevations where drought and cold stress are greatest, respectively. We expected that decreases in NSC concentrations during darkness should be minimal and, more importantly, increases in NSC after re-illumination should be higher than increases in biomass. We found that darkness caused a significant decrease in NSC concentrations of both low- and high-elevation plants, but the magnitude of the decrease was lower in the latter. Re-illumination caused higher increase in NSC concentration than in biomass in both low- and high-elevation plants (1.5- and 1.9-fold, respectively). Our study shows that C allocation in Phacelia secunda reflects ecotypic differences among elevation provenances and suggests that low temperature, but not drought, favours C allocation to storage over growth after severe C limitation.
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Affiliation(s)
- Claudia Reyes-Bahamonde
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile. .,Instituto de Ecología y Biodiversidad (IEB), Casilla 653, Santiago, Chile.
| | - Frida I Piper
- Centro de Investigación en Ecosistemas de la Patagonia (CIEP), Moraleda 16, Coyhaique, Chile
| | - Lohengrin A Cavieres
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile.,Instituto de Ecología y Biodiversidad (IEB), Casilla 653, Santiago, Chile
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16
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Duarte M, Verdú M, Cavieres LA, Bustamante RO. Plant–plant facilitation increases with reduced phylogenetic relatedness along an elevation gradient. OIKOS 2020. [DOI: 10.1111/oik.07680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Milen Duarte
- Dept de Ciencias Ecológicas, Facultad de Ciencias, Univ. de Chile Santiago Chile
- Inst. de Ecología y Biodiversidad Santiago Chile
| | - Miguel Verdú
- Centro de Investigaciones sobre Desertificación (CIDE CSIC‐UV‐GV), Apartado Oficial Moncada Valencia Spain
| | - Lohengrin A. Cavieres
- Inst. de Ecología y Biodiversidad Santiago Chile
- Dept de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Univ. de Concepción Chile
| | - Ramiro O. Bustamante
- Dept de Ciencias Ecológicas, Facultad de Ciencias, Univ. de Chile Santiago Chile
- Inst. de Ecología y Biodiversidad Santiago Chile
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17
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Sotes GJ, Cavieres LA, Gómez-González S. High competitive ability of Centaurea melitensis L. (Asteraceae) does not increase in the invaded range. Biol Invasions 2020. [DOI: 10.1007/s10530-020-02396-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Barros A, Aschero V, Mazzolari A, Cavieres LA, Pickering CM. Going off trails: How dispersed visitor use affects alpine vegetation. J Environ Manage 2020; 267:110546. [PMID: 32421663 DOI: 10.1016/j.jenvman.2020.110546] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Mountain protected areas provide a range of ecosystem services including conserving biodiversity, while often providing recreation and tourism opportunities. Unfortunately, tourists and pack animals used to transport equipment can damage sensitive alpine vegetation particularly when they leave trails. This study assessed the impacts of disturbance from off trail use on alpine vegetation in a popular park in the Andes. The effect of different levels of disturbance as well as abiotic factors on alpine steppe vegetation was assessed using generalized linear models and ordinations in 91 plots (20 m2) in the popular Horcones Valley that is used to access remote areas in Aconcagua Provincial Park in Argentina. Disturbance off trails resulted in declines in the cover of native plants, including the endemic shrub Adesmia aegiceras but increases in the cover of herbs including the non-native Convolvulus arvensis. Increased disturbance was associated with shifts from stress tolerant species to ruderal plants characterized by more acquisitive traits, including shorter plants with greater Specific Leaf Area. The research demonstrates the severity of impacts from off trail trampling including how trampling favours some species with specific traits over others and why it is important to limit off track use in areas of high conservation value.
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Affiliation(s)
- Agustina Barros
- Instituto Argentino de Nivología y Glaciología y Ciencias Ambientales (IANIGLA), Centro Científico Tecnológico (CCT), CONICET Mendoza, Av. Ruiz Leal s/n, C.C 330, Mendoza, Argentina.
| | - Valeria Aschero
- Instituto Argentino de Nivología y Glaciología y Ciencias Ambientales (IANIGLA), Centro Científico Tecnológico (CCT), CONICET Mendoza, Av. Ruiz Leal s/n, C.C 330, Mendoza, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Ana Mazzolari
- Instituto Argentino de Nivología y Glaciología y Ciencias Ambientales (IANIGLA), Centro Científico Tecnológico (CCT), CONICET Mendoza, Av. Ruiz Leal s/n, C.C 330, Mendoza, Argentina
| | - Lohengrin A Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160C, Concepción, Chile; Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile.
| | - Catherine M Pickering
- Environmental Futures Research Institute, School of Science and Environment, Griffith University, Gold Coast, Queensland, 4222, Australia
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19
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Clemente-Moreno MJ, Omranian N, Sáez PL, Figueroa CM, Del-Saz N, Elso M, Poblete L, Orf I, Cuadros-Inostroza A, Cavieres LA, Bravo L, Fernie AR, Ribas-Carbó M, Flexas J, Nikoloski Z, Brotman Y, Gago J. Low-temperature tolerance of the Antarctic species Deschampsia antarctica: A complex metabolic response associated with nutrient remobilization. Plant Cell Environ 2020; 43:1376-1393. [PMID: 32012308 DOI: 10.1111/pce.13737] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 01/19/2020] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
The species Deschampsia antarctica (DA) is one of the only two native vascular species that live in Antarctica. We performed ecophysiological, biochemical, and metabolomic studies to investigate the responses of DA to low temperature. In parallel, we assessed the responses in a non-Antarctic reference species (Triticum aestivum [TA]) from the same family (Poaceae). At low temperature (4°C), both species showed lower photosynthetic rates (reductions were 70% and 80% for DA and TA, respectively) and symptoms of oxidative stress but opposite responses of antioxidant enzymes (peroxidases and catalase). We employed fused least absolute shrinkage and selection operator statistical modelling to associate the species-dependent physiological and antioxidant responses to primary metabolism. Model results for DA indicated associations with osmoprotection, cell wall remodelling, membrane stabilization, and antioxidant secondary metabolism (synthesis of flavonols and phenylpropanoids), coordinated with nutrient mobilization from source to sink tissues (confirmed by elemental analysis), which were not observed in TA. The metabolic behaviour of DA, with significant changes in particular metabolites, was compared with a newly compiled multispecies dataset showing a general accumulation of metabolites in response to low temperatures. Altogether, the responses displayed by DA suggest a compromise between catabolism and maintenance of leaf functionality.
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Affiliation(s)
- María José Clemente-Moreno
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB)-Instituto de Agroecología y Economía del Agua (INAGEA), Palma de Mallorca, Spain
| | - Nooshin Omranian
- Systems Biology and Mathematical Modeling Group, Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam, Germany
- Bioinformatics, Institute of Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany
| | - Patricia L Sáez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | | | - Néstor Del-Saz
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Mhartyn Elso
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Leticia Poblete
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Isabel Orf
- Department of Life Sciences, Ben Gurion University of the Negev, Beersheva, Israel
| | | | - Lohengrin A Cavieres
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción and Instituto de Ecología y Biodiversidad-IEB, Concepción, Chile
| | - León Bravo
- Lab. de Fisiología y Biología Molecular Vegetal, Dpt. de Cs. Agronómicas y Recursos Naturales, Facultad de Cs. Agropecuarias y Forestales, Instituto de Agroindustria, & Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | - Alisdair R Fernie
- Central Metabolism Group, Molecular Physiology Department, Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam, Germany
| | - Miquel Ribas-Carbó
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB)-Instituto de Agroecología y Economía del Agua (INAGEA), Palma de Mallorca, Spain
| | - Jaume Flexas
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB)-Instituto de Agroecología y Economía del Agua (INAGEA), Palma de Mallorca, Spain
| | - Zoran Nikoloski
- Systems Biology and Mathematical Modeling Group, Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam, Germany
- Bioinformatics, Institute of Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany
- Center of Plant System Biology and Biotechnology (CPSBB), Plovdiv, Bulgaria
| | - Yariv Brotman
- Department of Life Sciences, Ben Gurion University of the Negev, Beersheva, Israel
| | - Jorge Gago
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB)-Instituto de Agroecología y Economía del Agua (INAGEA), Palma de Mallorca, Spain
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20
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Casagrande Bacchiocchi S, Scandellari F, Wellstein C, Cavieres LA, Zerbe S. Assessing the ecophysiological response of a mountain grassland community to ski slope management through isotopic composition. Isotopes Environ Health Stud 2020; 56:36-50. [PMID: 32067470 DOI: 10.1080/10256016.2020.1725000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 12/19/2019] [Indexed: 06/10/2023]
Abstract
A scarce natural snow cover forces an increasing use of artificial snow on ski slopes and returns a small amount of snowmelt water available to plants outside the pistes at the beginning of the growing season. We tested if the use of artificial snow on the ski slopes and the decreased natural snow cover outside the ski slopes lead to changes in the leaf ecophysiology of dominant species in a ski area located in Northern Italy. Using carbon (13C/12C) and oxygen (18O/16O) stable isotope ratios in plant leaves, we estimated the intrinsic water use efficiency (iWUE) and we speculated about changes in photosynthesis and stomatal conductance. Furthermore, carbon and nitrogen concentration, pigments and dry matter content, and the specific area of leaves were measured. We found a higher iWUE of the plants on the ski slopes than outside, probably because the plants on the ski piste are exposed to a condition close to waterlogging that can lead them to regulate their stomata differently than the plants outside the pistes. This behaviour was observed particularly in Ranunculus acris and in Tussilago farfara, for these species the water surplus on the piste may have affected the plants' gas exchanges.
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Affiliation(s)
| | | | - Camilla Wellstein
- Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy
| | - Lohengrin A Cavieres
- Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
- Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
| | - Stefan Zerbe
- Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy
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21
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Fernández-Marín B, Gulías J, Figueroa CM, Iñiguez C, Clemente-Moreno MJ, Nunes-Nesi A, Fernie AR, Cavieres LA, Bravo LA, García-Plazaola JI, Gago J. How do vascular plants perform photosynthesis in extreme environments? An integrative ecophysiological and biochemical story. Plant J 2020; 101:979-1000. [PMID: 31953876 DOI: 10.1111/tpj.14694] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 12/14/2019] [Accepted: 01/07/2020] [Indexed: 05/24/2023]
Abstract
In this work, we review the physiological and molecular mechanisms that allow vascular plants to perform photosynthesis in extreme environments, such as deserts, polar and alpine ecosystems. Specifically, we discuss the morpho/anatomical, photochemical and metabolic adaptive processes that enable a positive carbon balance in photosynthetic tissues under extreme temperatures and/or severe water-limiting conditions in C3 species. Nevertheless, only a few studies have described the in situ functioning of photoprotection in plants from extreme environments, given the intrinsic difficulties of fieldwork in remote places. However, they cover a substantial geographical and functional range, which allowed us to describe some general trends. In general, photoprotection relies on the same mechanisms as those operating in the remaining plant species, ranging from enhanced morphological photoprotection to increased scavenging of oxidative products such as reactive oxygen species. Much less information is available about the main physiological and biochemical drivers of photosynthesis: stomatal conductance (gs ), mesophyll conductance (gm ) and carbon fixation, mostly driven by RuBisCO carboxylation. Extreme environments shape adaptations in structures, such as cell wall and membrane composition, the concentration and activation state of Calvin-Benson cycle enzymes, and RuBisCO evolution, optimizing kinetic traits to ensure functionality. Altogether, these species display a combination of rearrangements, from the whole-plant level to the molecular scale, to sustain a positive carbon balance in some of the most hostile environments on Earth.
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Affiliation(s)
- Beatriz Fernández-Marín
- Department of Botany, Ecology and Plant Physiology, University of La Laguna, Tenerife, 38200, Spain
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Leioa, Spain
| | - Javier Gulías
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB), Instituto de Investigaciones Agroambientales y de Economía del Agua (INAGEA), Ctra. Valldemossa km 7.5, 07122, Palma, Spain
| | - Carlos M Figueroa
- UNL, CONICET, FBCB, Instituto de Agrobiotecnología del Litoral, 3000, Santa Fe, Argentina
| | - Concepción Iñiguez
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB), Instituto de Investigaciones Agroambientales y de Economía del Agua (INAGEA), Ctra. Valldemossa km 7.5, 07122, Palma, Spain
| | - María J Clemente-Moreno
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB), Instituto de Investigaciones Agroambientales y de Economía del Agua (INAGEA), Ctra. Valldemossa km 7.5, 07122, Palma, Spain
| | - Adriano Nunes-Nesi
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil
| | - Alisdair R Fernie
- Central Metabolism Group, Molecular Physiology Department, Max-Planck-Institut für Molekulare Pflanzenphysiologie, Golm, Germany
| | - Lohengrin A Cavieres
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - León A Bravo
- Lab. de Fisiología y Biología Molecular Vegetal, Dpt. de Cs. Agronómicas y Recursos Naturales, Facultad de Cs. Agropecuarias y Forestales, Instituto de Agroindustria, Universidad de La Frontera, Temuco, Chile
- Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | - José I García-Plazaola
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Leioa, Spain
| | - Jorge Gago
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB), Instituto de Investigaciones Agroambientales y de Economía del Agua (INAGEA), Ctra. Valldemossa km 7.5, 07122, Palma, Spain
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22
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López-Angulo J, Pescador DS, Sánchez AM, Luzuriaga AL, Cavieres LA, Escudero A. Alpine vegetation dataset from three contrasting mountain ranges differing in climate and evolutionary history. Data Brief 2019; 27:104816. [PMID: 31788524 PMCID: PMC6880020 DOI: 10.1016/j.dib.2019.104816] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 10/29/2019] [Accepted: 11/07/2019] [Indexed: 11/30/2022] Open
Abstract
Vegetation above treeline constitutes one of the most vulnerable ecosystems to climate warming and other drivers of Global Change. Given the panorama of such an uncertain future facing these plant communities, it is critical to know how they respond to environmental changes and improve the knowledge on the potential impacts of climate change on their distribution. Recently, with the impressive development of trait-based approaches, relevant progress has been made to better understand the relationships between environmental conditions and plant communities. In this data paper, we describe data on abundances of 327 alpine plant species across 430 subplots of 2.4 m × 2.4 m in three mountain ranges (Sierra de Guadarrama and Pyrenees in Spain, and the Central Andes in Chile). We provide data on different environmental variables that represent variation in abiotic conditions and operate at different spatial scales (e.g., climatic, topographic and soil conditions). Data on six plant functional traits are also shown, which were measured on ten individuals of each species, following standard protocols. We provided the dataset as tables in the supplementary material. This information could be used to analyse the relationship between the alpine vegetation and changes in environmental conditions, and ultimately, to understand ecosystem functioning and guide conservation strategies of theses threatened and valuable ecosystems.
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Affiliation(s)
- Jesús López-Angulo
- Departamento de Biología, Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnológicas, Universidad Rey Juan Carlos, Móstoles, Spain
| | - David S Pescador
- Departamento de Biología, Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnológicas, Universidad Rey Juan Carlos, Móstoles, Spain
| | - Ana M Sánchez
- Departamento de Biología, Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnológicas, Universidad Rey Juan Carlos, Móstoles, Spain
| | - Arantzazu L Luzuriaga
- Departamento de Biología, Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnológicas, Universidad Rey Juan Carlos, Móstoles, Spain
| | - Lohengrin A Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile.,Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
| | - Adrián Escudero
- Departamento de Biología, Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnológicas, Universidad Rey Juan Carlos, Móstoles, Spain
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23
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Sanhueza C, Fuentes F, Cortés D, Bascunan-Godoy L, Sáez PL, Bravo LA, Cavieres LA. Contrasting thermal acclimation of leaf dark respiration and photosynthesis of Antarctic vascular plant species exposed to nocturnal warming. Physiol Plant 2019; 167:205-216. [PMID: 30467866 DOI: 10.1111/ppl.12881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/02/2018] [Accepted: 11/16/2018] [Indexed: 06/09/2023]
Abstract
Leaf respiration and photosynthesis will respond differently to an increase in temperature during night, which can be more relevant in sensitive ecosystems such as Antarctica. We postulate that the plant species able to colonize the Antarctic Peninsula - Colobanthus quitensis (Kunth) Bartl. and Deschampsia antarctica Desv. - are able to acclimate their foliar respiration and to maintain photosynthesis under nocturnal warming to sustain a positive foliar carbon balance. We conducted a laboratory experiment to evaluate the effect of time of day (day and night) and nocturnal warming on dark respiration. Short (E0 and Q10 ) and long-term acclimation of respiration, leaf carbohydrates, photosynthesis (Asat ) and foliar carbon balance (R/A) were evaluated. The results suggest that the two species have differential thermal acclimation respiration, where D. antarctica showed more thermosensitivity to short-term changes in temperature than C. quitensis. Experimental nocturnal warming affected respiration at daytime differentially between the two species, with a significant increase of R10 and Asat in D. antarctica, while no changes on respiration were observed in C. quitensis. Long thermal treatments of the plants indicated that nocturnal but not diurnal respiration could acclimate in both species, and to a greater extent in C. quitensis. Non-structural carbohydrates were related with respiration in C. quitensis but not in D. antarctica, suggesting that respiration in the former species is likely controlled by total soluble sugars and starch during day and night, respectively. Finally, foliar carbon balance was differentially improved under warming conditions in Antarctic plants by different mechanisms, with C. quitensis deploying respiratory acclimation, while D. antarctica increased its Asat.
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Affiliation(s)
- Carolina Sanhueza
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Francisca Fuentes
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Daniela Cortés
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Luisa Bascunan-Godoy
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
- Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, Coquimbo, Chile
| | - Patricia L Sáez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - León A Bravo
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Agroindustria, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Forestales and Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | - Lohengrin A Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
- Departamento de Ciencias Ecológicas, Facultad de Ciencias de la Universidad de Chile, Instituto de Ecología y Biodiversidad-IEB, Santiago, Chile
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Casagrande Bacchiocchi S, Zerbe S, Cavieres LA, Wellstein C. Impact of ski piste management on mountain grassland ecosystems in the Southern Alps. Sci Total Environ 2019; 665:959-967. [PMID: 30893754 DOI: 10.1016/j.scitotenv.2019.02.086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/04/2019] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
In the Southern Alps, climate warming induced the use of artificial snow since two decades. In this area, two different ski piste management practices prevail: (1) large and medium ski resorts (M), which guarantee a ski season of four to five months using artificial snow, whereas (2) in the small, local ski resorts (S) it usually lasts two or three months. Our research addresses two main questions: 1) what is the impact of the ski pistes on the physico-chemical properties of the snow, on the soil and on the vegetation of mountain grassland ecosystems and 2) does the impact on the mountain grassland ecosystems change between medium and small ski resorts? Our experimental approach follows a pairwise design of plots on mountain grasslands of the ski pistes and control plots on mountain grasslands outside the pistes, where we examined the snow and soil properties and the vegetation composition. Under the long ski-season management (M) we found a significantly lower soil temperature below the snow cover of the ski pistes than the one below the natural snowpack, but this difference was limited to the period of natural snow cover. Only in M, pistes showed a lower biomass production and species richness in the mountain grassland plant communities compared to the controls, while there was no effect in S. The proportions of plant functional groups' cover changed in both ski resort types between piste and control. The most important factors affecting the observed differences in vegetation between pistes and controls were snow duration, snow and soil chemical properties, with more marked differences in the soil properties in M respect to S. The study concludes that reducing the ski season's length, therefore limiting the artificial snow's input, as in S, is more adequate to minimize the environmental impact in a changing climate.
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Affiliation(s)
| | - Stefan Zerbe
- Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy
| | - Lohengrin A Cavieres
- Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile; Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
| | - Camilla Wellstein
- Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy
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Sáez PL, Rivera BK, Ramírez CF, Vallejos V, Cavieres LA, Corcuera LJ, Bravo LA. Effects of temperature and water availability on light energy utilization in photosynthetic processes of Deschampsia antarctica. Physiol Plant 2019; 165:511-523. [PMID: 29602170 DOI: 10.1111/ppl.12739] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 02/15/2018] [Accepted: 03/25/2018] [Indexed: 05/08/2023]
Abstract
Regional climate change in Antarctica would favor the carbon assimilation of Antarctic vascular plants, since rising temperatures are approaching their photosynthetic optimum (10-19°C). This could be detrimental for photoprotection mechanisms, mainly those associated with thermal dissipation, making plants more susceptible to eventual drought predicted by climate change models. With the purpose to study the effect of temperature and water availability on light energy utilization and putative adjustments in photoprotective mechanisms of Deschampsia antarctica Desv., plants were collected from two Antarctic provenances: King George Island and Lagotellerie Island. Plants were cultivated at 5, 10 and 16°C under well-watered (WW) and water-deficit (WD, at 35% of the field capacity) conditions. Chlorophyll fluorescence, pigment content and de-epoxidation state were evaluated. Regardless of provenances, D. antarctica showed similar morphological, biochemical and functional responses to growth temperature. Higher temperature triggered an increase in photochemical activity (i.e. electron transport rate and photochemical quenching), and a decrease in thermal dissipation capacity (i.e. lower xanthophyll pool, Chl a/b and β carotene/neoxanthin ratios). Leaf mass per unit area was reduced at higher temperature, and was only affected in plants exposed to WD at 16°C and exhibiting lower electron transport rate and amount of chlorophylls. D. antarctica is adapted to frequent freezing events, which may induce a form of physiological water stress. Photoprotective responses observed under WD contribute to maintain a stable photochemical activity. Thus, it is possible that short-term temperature increases could favor the photochemical activity of this species. However, long-term effects will depend on the magnitude of changes and the plant's ability to adjust to new growth temperature.
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Affiliation(s)
- Patricia L Sáez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Betsy K Rivera
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Constanza F Ramírez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Valentina Vallejos
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Lohengrin A Cavieres
- Laboratorio ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Luis J Corcuera
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción. Barrio Universitario s/n, Concepción, Chile
| | - León A Bravo
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Agroindustria, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Forestales, Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
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Sierra-Almeida A, Cavieres LA, Bravo LA. Warmer Temperatures Affect the in situ Freezing Resistance of the Antarctic Vascular Plants. Front Plant Sci 2018; 9:1456. [PMID: 30349551 PMCID: PMC6187968 DOI: 10.3389/fpls.2018.01456] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/12/2018] [Indexed: 05/15/2023]
Abstract
Although positive effects on growth and reproduction of Antarctic vascular plants have been reported under warmer temperatures, it could also increase the vulnerability of these plants to freezing. Thus, we assessed in situ whether warming decreases the freezing resistance of Colobanthus quitensis and Deschampsia antarctica, and we compared the level and mechanism of freezing resistance of these species in the field with previous reports conducted in lab conditions. We assessed the freezing resistance of C. quitensis and D. antarctica by determining their low temperature damage (LT50), ice nucleation temperature (NT) and freezing point (FP) in three sites of the King George Island. Plants were exposed during two growing seasons to a passive increase in the air temperature (+W). +W increased by 1K the mean air temperatures, but had smaller effects on freezing temperatures. Leaf temperature of both species was on average 1.7K warmer inside +W. Overall, warming decreased the freezing resistance of Antarctic species. The LT50 increased on average 2K for C. quitensis and 2.8K for D. antarctica. In contrast, NT and FP decreased on average c. 1K in leaves of warmed plants of both species. Our results showed an averaged LT50 of -15.3°C for C. quitensis, and of -22.8°C for D. antarctica, with freezing tolerance being the freezing resistance mechanism for both species. These results were partially consistent with previous reports, and likely explanations for such discrepancies were related with methodological differences among studies. Our work is the first study reporting the level and mechanisms of freezing resistance of Antarctic vascular plants measured in situ, and we demonstrated that although both plant species exhibited a great ability to cope with freezing temperatures during the growing season, their vulnerability to suffer freezing damage under a warming scenario increase although the magnitude of this response varied across sites and species. Hence, freezing damage should be considered when predicting changes in plant responses of C. quitensis and D. antarctica under future climate conditions of the Antarctic Peninsula.
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Affiliation(s)
- Angela Sierra-Almeida
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
- Instituto de Ecología y Biodiversidad, Santiago, Chile
| | - Lohengrin A. Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
- Instituto de Ecología y Biodiversidad, Santiago, Chile
| | - León A. Bravo
- Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Forestales and Center of Plant, Soil Interactions and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
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27
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López-Angulo J, Pescador DS, Sánchez AM, Mihoč MAK, Cavieres LA, Escudero A. Determinants of high mountain plant diversity in the Chilean Andes: From regional to local spatial scales. PLoS One 2018; 13:e0200216. [PMID: 29979767 PMCID: PMC6034847 DOI: 10.1371/journal.pone.0200216] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 06/21/2018] [Indexed: 11/18/2022] Open
Abstract
Mountains are considered excellent natural laboratories for studying the determinants of plant diversity at contrasting spatial scales. To gain insights into how plant diversity is structured at different spatial scales, we surveyed high mountain plant communities in the Chilean Andes where man-driven perturbations are rare. This was done along elevational gradients located at different latitudes taking into account factors that act at fine scales, including abiotic (potential solar radiation and soil quality) and biotic (species interactions) factors, and considering multiple spatial scales. Species richness, inverse of Simpson's concentration (Dequiv), beta-diversity and plant cover were estimated using the percentage of cover per species recorded in 34 sites in the different regions with contrasted climates. Overall, plant species richness, Dequiv and plant cover were lower in sites located at higher latitudes. We found a unimodal relationship between species richness and elevation and this pattern was constant independently of the regional climatic conditions. Soil quality decreased the beta-diversity among the plots in each massif and increased the richness, the Dequiv and cover. Segregated patterns of species co-occurrence were related to increases in richness, Dequiv and plant cover at finer scales. Our results showed that elevation patterns of alpine plant diversity remained constant along the regions although the mechanisms underlying these diversity patterns may differ among climatic regions. They also suggested that the patterns of plant diversity in alpine ecosystems respond to a series of factors (abiotic and biotic) that act jointly at different spatial scale determining the assemblages of local communities, but their importance can only be assessed using a multi-scale spatial approach.
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Affiliation(s)
- Jesús López-Angulo
- Departamento de Biología, Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Madrid, Spain
| | - David S. Pescador
- Departamento de Biología, Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Madrid, Spain
| | - Ana M. Sánchez
- Departamento de Biología, Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Madrid, Spain
| | | | - Lohengrin A. Cavieres
- Departamento de Botánica, Universidad de Concepción, Concepción, Chile
- Instituto de Ecología y Biodiversidad, Santiago, Chile
| | - Adrián Escudero
- Departamento de Biología, Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Madrid, Spain
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Sáez PL, Cavieres LA, Galmés J, Gil-Pelegrín E, Peguero-Pina JJ, Sancho-Knapik D, Vivas M, Sanhueza C, Ramírez CF, Rivera BK, Corcuera LJ, Bravo LA. In situ warming in the Antarctic: effects on growth and photosynthesis in Antarctic vascular plants. New Phytol 2018; 218:1406-1418. [PMID: 29682746 DOI: 10.1111/nph.15124] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/15/2018] [Indexed: 05/27/2023]
Abstract
The Antarctic Peninsula has experienced a rapid warming in the last decades. Although recent climatic evidence supports a new tendency towards stabilization of temperatures, the impacts on the biosphere, and specifically on Antarctic plant species, remain unclear. We evaluated the in situ warming effects on photosynthesis, including the underlying diffusive, biochemical and anatomical determinants, and the relative growth of two Antarctic vascular species, Colobanthus quitensis and Deschampsia antarctica, using open top chambers (OTCs) and gas exchange measurements in the field. In C. quitensis, the photosynthetic response to warming relied on specific adjustments in the anatomical determinants of the leaf CO2 transfer, which enhanced mesophyll conductance and photosynthetic assimilation, thereby promoting higher leaf carbon gain and plant growth. These changes were accompanied by alterations in the leaf chemical composition. By contrast, D. antarctica showed no response to warming, with a lack of significant differences between plants grown inside OTCs and plants grown in the open field. Overall, the present results are the first reporting a contrasting effect of in situ warming on photosynthesis and its underlying determinants, of the two unique Antarctic vascular plant species, which could have direct consequences on their ecological success under future climate conditions.
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Affiliation(s)
- Patricia L Sáez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, 4030000, Chile
| | - Lohengrin A Cavieres
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario s/n, Concepción, 4030000, Chile
| | - Jeroni Galmés
- Research Group on Plant Biology under Mediterranean Conditions, INAGEA-Universitat de les Illes Balears, Balearic Islands, 07122, Spain
| | - Eustaquio Gil-Pelegrín
- Unidad de Recursos Forestales, Centro de Investigación y Tecnología Agroalimentaria de Aragón, Zaragoza, 50059, Spain
| | - José Javier Peguero-Pina
- Unidad de Recursos Forestales, Centro de Investigación y Tecnología Agroalimentaria de Aragón, Zaragoza, 50059, Spain
| | - Domingo Sancho-Knapik
- Unidad de Recursos Forestales, Centro de Investigación y Tecnología Agroalimentaria de Aragón, Zaragoza, 50059, Spain
| | - Mercedes Vivas
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario s/n, Concepción, 4030000, Chile
| | - Carolina Sanhueza
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario s/n, Concepción, 4030000, Chile
| | - Constanza F Ramírez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, 4030000, Chile
| | - Betsy K Rivera
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, 4030000, Chile
| | - Luis J Corcuera
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario s/n, Concepción, 4030000, Chile
| | - León A Bravo
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Agroindustria, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Forestales, Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, 4811230, Chile
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29
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Sandoya V, Pauchard A, Cavieres LA. Natives and non-natives plants show different responses to elevation and disturbance on the tropical high Andes of Ecuador. Ecol Evol 2017; 7:7909-7919. [PMID: 29043044 PMCID: PMC5632626 DOI: 10.1002/ece3.3270] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 06/10/2017] [Accepted: 06/25/2017] [Indexed: 11/08/2022] Open
Abstract
The aim was to assess patterns of plant diversity in response to elevation and disturbance in a tropical mountain. The study area was located in north‐central portion of the Eastern Cordillera of the Ecuadorian Andes, on a road from 1,150 m a.s.l. (Osayacu) to 4,000 (Papallacta). Along a mountain road spanning a wide altitudinal gradient, at 20 elevations we sampled three plots: one at the roadside and two perpendicular to the roadside. The relationship between elevation and species richness was assessed using linear and quadratic regressions, the effect of disturbance on species richness was determined by ANCOVA and a t test with parameters obtained from quadratic equations. Similarity of species composition among the roadside and sites distant was evaluated with the Chao‐Jaccard and classic Jaccard similarity indices, the distribution of non‐native species according to their origin were analyzed with linear and quadratic regression. The native species showed a linearly monotonic decrease with elevation, whereas non‐natives showed a quadratic distribution. Disturbed areas had the greatest number of non‐native species and lower native species richness, showing also a high floristic similarity; less disturbed areas showed the opposite. The non‐native species of temperate origin were more numerous and showed unimodal elevational distribution, while species of tropical origin were few and decreased linearly with elevation. We conclude that in a tropical highland mountain range, native and non‐native plant species respond differently to elevation: native species exhibit a monotonically linear decrease, and non‐native species show a unimodal trend. Disturbance positively affects non‐native species showing higher richness and fewer species turnover. In addition, the non‐native species are located along of the elevational gradient in relation to their biogeographic origin.
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Affiliation(s)
- Verónica Sandoya
- Escuela de Ciencias Biológicas e Ingeniería Universidad Yachay Tech Urcuquí Ecuador.,Centre de Recerca Ecològica i Aplicacions Forestals Universitat Autònoma de Barcelona Barcelona España.,Departamento de Botánica Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción Concepción Chile
| | - Aníbal Pauchard
- Laboratorio de Invasiones Biológicas (LIB) Facultad de Ciencias Forestales Universidad de Concepción Concepción Chile.,Instituto de Ecología y Biodiversidad-IEB Santiago Chile
| | - Lohengrin A Cavieres
- Departamento de Botánica Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción Concepción Chile.,Instituto de Ecología y Biodiversidad-IEB Santiago Chile
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30
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Irimia RE, Montesinos D, Eren Ö, Lortie CJ, French K, Cavieres LA, Sotes GJ, Hierro JL, Jorge A, Loureiro J. Extensive analysis of native and non-native Centaurea solstitialis L. populations across the world shows no traces of polyploidization. PeerJ 2017; 5:e3531. [PMID: 28828232 PMCID: PMC5560225 DOI: 10.7717/peerj.3531] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 06/12/2017] [Indexed: 11/22/2022] Open
Abstract
Centaurea solstitialis L. (yellow starthistle, Asteraceae) is a Eurasian native plant introduced as an exotic into North and South America, and Australia, where it is regarded as a noxious invasive. Changes in ploidy level have been found to be responsible for numerous plant biological invasions, as they are involved in trait shifts critical to invasive success, like increased growth rate and biomass, longer life-span, or polycarpy. C. solstitialis had been reported to be diploid (2n = 2x = 16 chromosomes), however, actual data are scarce and sometimes contradictory. We determined for the first time the absolute nuclear DNA content by flow cytometry and estimated ploidy level in 52 natural populations of C. solstitialis across its native and non-native ranges, around the world. All the C. solstitialis populations screened were found to be homogeneously diploid (average 2C value of 1.72 pg, SD = ±0.06 pg), with no significant variation in DNA content between invasive and non-invasive genotypes. We did not find any meaningful difference among the extensive number of native and non-native C. solstitialis populations sampled around the globe, indicating that the species invasive success is not due to changes in genome size or ploidy level.
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Affiliation(s)
- Ramona-Elena Irimia
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal.,National Institute of Research and Development for Biological Sciences, Stejarul Research Centre for Biological Sciences, Piatra Neamt, Romania
| | - Daniel Montesinos
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Özkan Eren
- Adnan Menderes Üniversitesi, Fen-Edebiyat Fakültesi, Biyoloji Bölümü, Aydın, Turkey
| | | | - Kristine French
- School of Biological Sciences, University of Wollongong, Wollongong, Australia
| | - Lohengrin A Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile.,Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
| | - Gastón J Sotes
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile.,Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
| | - José L Hierro
- Instituto de Ciencias de La Tierra y Ambientales de la Pampa, Consejo Nacional de Investigaciones Científicas y Técnicas (INCITAP-CONICET) and Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Santa Rosa, Argentina
| | - Andreia Jorge
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - João Loureiro
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
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Gómez-González S, Paula S, Cavieres LA, Pausas JG. Postfire responses of the woody flora of Central Chile: Insights from a germination experiment. PLoS One 2017; 12:e0180661. [PMID: 28704449 PMCID: PMC5507535 DOI: 10.1371/journal.pone.0180661] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 06/19/2017] [Indexed: 11/23/2022] Open
Abstract
Fire is a selective agent shaping plant traits and community assembly in fire-prone ecosystems. However, in ecosystems with no fire history, it can be a cause of land degradation when it is suddenly introduced by humans, as plant species may not be able to respond to such novel disturbance. Unlike other Mediterranean-type ecosystems (MTE) of the world, natural fires have not been frequent during the Quaternary in the matorral of Central Chile, and thus, plant adaptive responses are expected to be uncommon. We evaluated the effect of heat shock on seed survival and germination of 21 native woody plants of the Chilean matorral and compiled information on smoke-stimulation and resprouting, to evaluate the importance of fire-adaptive responses in the context of the other MTE. We found that in the Chilean woody flora negative seed responses to fire cues were more frequent than positive responses. Although resprouting is a relatively widespread trait, fire-stimulated germination is not as common in the Chilean matorral as in other MTE. The seeds of seven endemic species were strongly damaged by fire cues and this should be considered in post-fire restoration planning. However, our results also showed that many species were resistant to elevated doses of heat shock and in some, germination was even stimulated. Thus, future research should focus on the evolutionary causes of these responses. These findings could help to develop strategies for fire management in the Chilean matorral. In addition, they will improve our understanding of the evolutionary forces that shaped this plant community and to better frame this region among the other MTE worldwide.
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Affiliation(s)
- Susana Gómez-González
- Departamento de Biología-IVAGRO, Universidad de Cádiz, Puerto Real, España
- Centre for Science and Resilience Research [(CR)2], Universidad de Chile, Santiago, Chile
| | - Susana Paula
- Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia, Chile
| | - Lohengrin A. Cavieres
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
- Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
| | - Juli G. Pausas
- Centro de Investigación sobre Desertificación (CIDE-CSIC), Valencia, España
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32
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Sáez PL, Bravo LA, Cavieres LA, Vallejos V, Sanhueza C, Font-Carrascosa M, Gil-Pelegrín E, Javier Peguero-Pina J, Galmés J. Photosynthetic limitations in two Antarctic vascular plants: importance of leaf anatomical traits and Rubisco kinetic parameters. J Exp Bot 2017; 68:2871-2883. [PMID: 28830100 PMCID: PMC5854023 DOI: 10.1093/jxb/erx148] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 04/07/2017] [Indexed: 05/05/2023]
Abstract
Particular physiological traits allow the vascular plants Deschampsia antarctica Desv. and Colobanthus quitensis (Kunth) Bartl. to inhabit Antarctica. The photosynthetic performance of these species was evaluated in situ, focusing on diffusive and biochemical constraints to CO2 assimilation. Leaf gas exchange, Chl a fluorescence, leaf ultrastructure, and Rubisco catalytic properties were examined in plants growing on King George and Lagotellerie islands. In spite of the species- and population-specific effects of the measurement temperature on the main photosynthetic parameters, CO2 assimilation was highly limited by CO2 diffusion. In particular, the mesophyll conductance (gm)-estimated from both gas exchange and leaf chlorophyll fluorescence and modeled from leaf anatomy-was remarkably low, restricting CO2 diffusion and imposing the strongest constraint to CO2 acquisition. Rubisco presented a high specificity for CO2 as determined in vitro, suggesting a tight co-ordination between CO2 diffusion and leaf biochemistry that may be critical ultimately to optimize carbon balance in these species. Interestingly, both anatomical and biochemical traits resembled those described in plants from arid environments, providing a new insight into plant functional acclimation to extreme conditions. Understanding what actually limits photosynthesis in these species is important to anticipate their responses to the ongoing and predicted rapid warming in the Antarctic Peninsula.
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Affiliation(s)
- Patricia L Sáez
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - León A Bravo
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Agroindustria, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Forestales, Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | - Lohengrin A Cavieres
- Laboratorio de ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario s/n, Concepción, Chile
| | - Valentina Vallejos
- Laboratorio Cultivo de Tejidos Vegetales, Centro de Biotecnología, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
| | - Carolina Sanhueza
- Laboratorio de ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario s/n, Concepción, Chile
| | - Marcel Font-Carrascosa
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears-INAGEA, Balearic Islands, Spain
| | - Eustaquio Gil-Pelegrín
- Unidad de Recursos Forestales, Centro de Investigación y Tecnología Agroalimentaria, Gobierno de Aragón, Zaragoza, Spain
| | - José Javier Peguero-Pina
- Unidad de Recursos Forestales, Centro de Investigación y Tecnología Agroalimentaria, Gobierno de Aragón, Zaragoza, Spain
| | - Jeroni Galmés
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears-INAGEA, Balearic Islands, Spain
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Pacheco DA, Dudley LS, Cabezas J, Cavieres LA, Arroyo MTK. Plastic Responses Contribute to Explaining Altitudinal and Temporal Variation in Potential Flower Longevity in High Andean Rhodolirion montanum. PLoS One 2016; 11:e0166350. [PMID: 27861586 PMCID: PMC5115873 DOI: 10.1371/journal.pone.0166350] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 10/27/2016] [Indexed: 11/28/2022] Open
Abstract
The tendency for flower longevity to increase with altitude is believed by many alpine ecologists to play an important role in compensating for low pollination rates at high altitudes due to cold and variable weather conditions. However, current studies documenting an altitudinal increase in flower longevity in the alpine habitat derive principally from studies on open-pollinated flowers where lower pollinator visitation rates at higher altitudes will tend to lead to flower senescence later in the life-span of a flower in comparison with lower altitudes, and thus could confound the real altitudinal pattern in a species´ potential flower longevity. In a two-year study we tested the hypothesis that a plastic effect of temperature on flower longevity could contribute to an altitudinal increase in potential flower longevity measured in pollinator-excluded flowers in high Andean Rhodolirium montanum Phil. (Amaryllidaceae). Using supplemental warming we investigated whether temperature around flowers plastically affects potential flower longevity. We determined tightly temperature-controlled potential flower longevity and flower height for natural populations on three alpine sites spread over an altitudinal transect from 2350 and 3075 m a.s.l. An experimental increase of 3.1°C around flowers significantly decreased flower longevity indicating a plastic response of flowers to temperature. Flower height in natural populations decreased significantly with altitude. Although temperature negatively affects flower longevity under experimental conditions, we found no evidence that temperature around flowers explains site variation in flower longevity over the altitudinal gradient. In a wetter year, despite a 3.5°C temperature difference around flowers at the extremes of the altitudinal range, flower longevity showed no increase with altitude. However, in a drier year, flower longevity increased significantly with altitude. The emerging picture suggests an increase in flower longevity along the altitudinal gradient is less common for potential flower longevity than for open-pollination flower longevity. Independently of any selection that may occur on potential longevity, plastic responses of flowers to environmental conditions are likely to contribute to altitudinal variation in flower longevity, especially in dry alpine areas. Such plastic responses could push flowers of alpine species towards shorter life-lengths under climate change, with uncertain consequences for successful pollination and plant fitness in a warming world.
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Affiliation(s)
- Diego Andrés Pacheco
- Instituto de Ecología y Biodiversidad, Santiago, Chile
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
- * E-mail:
| | - Leah S. Dudley
- Biology Department, University of Wisconsin-Stout, Menomonie, Wisconsin, United States of America
| | - Josefina Cabezas
- Instituto de Ecología y Biodiversidad, Santiago, Chile
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Lohengrin A. Cavieres
- Instituto de Ecología y Biodiversidad, Santiago, Chile
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Mary T. K. Arroyo
- Instituto de Ecología y Biodiversidad, Santiago, Chile
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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Pauchard A, Escudero A, García RA, de la Cruz M, Langdon B, Cavieres LA, Esquivel J. Pine invasions in treeless environments: dispersal overruns microsite heterogeneity. Ecol Evol 2016; 6:447-59. [PMID: 26843929 PMCID: PMC4729261 DOI: 10.1002/ece3.1877] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 11/12/2015] [Indexed: 12/02/2022] Open
Abstract
Understanding biological invasions patterns and mechanisms is highly needed for forecasting and managing these processes and their negative impacts. At small scales, ecological processes driving plant invasions are expected to produce a spatially explicit pattern driven by propagule pressure and local ground heterogeneity. Our aim was to determine the interplay between the intensity of seed rain, using distance to a mature plantation as a proxy, and microsite heterogeneity in the spreading of Pinus contorta in the treeless Patagonian steppe. Three one‐hectare plots were located under different degrees of P. contorta invasion (Coyhaique Alto, 45° 30′S and 71° 42′W). We fitted three types of inhomogeneous Poisson models to each pine plot in an attempt for describing the observed pattern as accurately as possible: the “dispersal” models, “local ground heterogeneity” models, and “combined” models, using both types of covariates. To include the temporal axis in the invasion process, we analyzed both the pattern of young and old recruits and also of all recruits together. As hypothesized, the spatial patterns of recruited pines showed coarse scale heterogeneity. Early pine invasion spatial patterns in our Patagonian steppe site is not different from expectations of inhomogeneous Poisson processes taking into consideration a linear and negative dependency of pine recruit intensity on the distance to afforestations. Models including ground‐cover predictors were able to describe the point pattern process only in a couple of cases but never better than dispersal models. This finding concurs with the idea that early invasions depend more on seed pressure than on the biotic and abiotic relationships seed and seedlings establish at the microsite scale. Our results show that without a timely and active management, P. contorta will invade the Patagonian steppe independently of the local ground‐cover conditions.
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Affiliation(s)
- Aníbal Pauchard
- Laboratorio de Invasiones Biológicas Facultad de Ciencias Forestales Universidad de Concepción Victoria 631, Casilla 160-C Concepción Chile; Institute of Ecology and Biodiversity (IEB) Las Palmeras 3425 Ñuñoa, Casilla 653 Santiago Chile
| | - Adrián Escudero
- Biodiversity and Conservation Unit Department of Sciences King Juan Carlos University c/Tulipán s/n. 28933 Móstoles Madrid Spain
| | - Rafael A García
- Laboratorio de Invasiones Biológicas Facultad de Ciencias Forestales Universidad de Concepción Victoria 631, Casilla 160-C Concepción Chile; Institute of Ecology and Biodiversity (IEB) Las Palmeras 3425 Ñuñoa, Casilla 653 Santiago Chile
| | - Marcelino de la Cruz
- Biodiversity and Conservation Unit Department of Sciences King Juan Carlos University c/Tulipán s/n. 28933 Móstoles Madrid Spain
| | - Bárbara Langdon
- Programa Conservación de Flora Bioforest SA Camino a Coronel km 15 S/N Concepción Chile
| | - Lohengrin A Cavieres
- Institute of Ecology and Biodiversity (IEB) Las Palmeras 3425 Ñuñoa, Casilla 653 Santiago Chile; Departamento de Botánica Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción Casilla 160-C Concepción Chile
| | - Jocelyn Esquivel
- Laboratorio de Invasiones Biológicas Facultad de Ciencias Forestales Universidad de Concepción Victoria 631, Casilla 160-C Concepción Chile; Institute of Ecology and Biodiversity (IEB) Las Palmeras 3425 Ñuñoa, Casilla 653 Santiago Chile
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Sotes GJ, Cavieres LA, Montesinos D, Pereira Coutinho AX, Peláez WJ, Lopes SM, Pinho e Melo TM. Inter-regional variation on leaf surface defenses in native and non-native Centaurea solstitialis plants. BIOCHEM SYST ECOL 2015. [DOI: 10.1016/j.bse.2015.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Cavieres LA, Hernández‐Fuentes C, Sierra‐Almeida A, Kikvidze Z. Facilitation among plants as an insurance policy for diversity in Alpine communities. Funct Ecol 2015. [DOI: 10.1111/1365-2435.12545] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lohengrin A. Cavieres
- ECOBIOSIS Departamento de Botánica Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción 4070043 Concepción Chile
- Instituto de Ecología y Biodiversidad Casilla 653 Santiago Chile
| | - Carolina Hernández‐Fuentes
- ECOBIOSIS Departamento de Botánica Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción 4070043 Concepción Chile
- Instituto de Ecología y Biodiversidad Casilla 653 Santiago Chile
| | - Angela Sierra‐Almeida
- ECOBIOSIS Departamento de Botánica Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción 4070043 Concepción Chile
- Instituto de Ecología y Biodiversidad Casilla 653 Santiago Chile
| | - Zaal Kikvidze
- 4D Research Institute Ilia State University Room 310 Building E 5 Cholokashvili Ave. Tbilisi 0162 Georgia
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Kikvidze Z, Brooker RW, Butterfield BJ, Callaway RM, Cavieres LA, Cook BJ, Lortie CJ, Michalet R, Pugnaire FI, Xiao S, Anthelme F, Björk RG, Cranston BH, Gavilán RG, Kanka R, Lingua E, Maalouf JP, Noroozi J, Parajuli R, Phoenix GK, Reid A, Ridenour WM, Rixen C, Schöb C. The effects of foundation species on community assembly: a global study on alpine cushion plant communities. Ecology 2015; 96:2064-9. [DOI: 10.1890/14-2443.1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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García MC, Bader MY, Cavieres LA. Facilitation consequences for reproduction of the benefactor cushion plantLaretia acaulisalong an elevational gradient: costs or benefits? OIKOS 2015. [DOI: 10.1111/oik.02592] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Mary Carolina García
- Depto de Botánica, Facultad de Ciencias Naturales y Oceanográficas; Univ. de Concepción; Barrio Universitario s/n Casilla 160-C, Concepción Chile
- Inst. de Ecología y Biodiversidad (IEB); Las Palmeras 3425 Ñuñoa, Casilla 653, Santiago Chile
| | - Maaike Y. Bader
- Ecological Plant Geography, Faculty of Geography, Univ. of Marburg; Deutschhausstrasse 10 DE-35032 Marburg Germany
| | - Lohengrin A. Cavieres
- Depto de Botánica, Facultad de Ciencias Naturales y Oceanográficas; Univ. de Concepción; Barrio Universitario s/n Casilla 160-C, Concepción Chile
- Inst. de Ecología y Biodiversidad (IEB); Las Palmeras 3425 Ñuñoa, Casilla 653, Santiago Chile
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Alarcón D, Cavieres LA. In the right place at the right time: habitat representation in protected areas of South American Nothofagus-dominated plants after a dispersal constrained climate change scenario. PLoS One 2015; 10:e0119952. [PMID: 25786226 PMCID: PMC4364909 DOI: 10.1371/journal.pone.0119952] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 01/19/2015] [Indexed: 11/19/2022] Open
Abstract
In order to assess the effects of climate change in temperate rainforest plants in southern South America in terms of habitat size, representation in protected areas, considering also if the expected impacts are similar for dominant trees and understory plant species, we used niche modeling constrained by species migration on 118 plant species, considering two groups of dominant trees and two groups of understory ferns. Representation in protected areas included Chilean national protected areas, private protected areas, and priority areas planned for future reserves, with two thresholds for minimum representation at the country level: 10% and 17%. With a 10% representation threshold, national protected areas currently represent only 50% of the assessed species. Private reserves are important since they increase up to 66% the species representation level. Besides, 97% of the evaluated species may achieve the minimum representation target only if the proposed priority areas were included. With the climate change scenario representation levels slightly increase to 53%, 69%, and 99%, respectively, to the categories previously mentioned. Thus, the current location of all the representation categories is useful for overcoming climate change by 2050. Climate change impacts on habitat size and representation of dominant trees in protected areas are not applicable to understory plants, highlighting the importance of assessing these effects with a larger number of species. Although climate change will modify the habitat size of plant species in South American temperate rainforests, it will have no significant impact in terms of the number of species adequately represented in Chile, where the implementation of the proposed reserves is vital to accomplish the present and future minimum representation. Our results also show the importance of using migration dispersal constraints to develop more realistic future habitat maps from climate change predictions.
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Affiliation(s)
- Diego Alarcón
- Departamento de Botánica, Universidad de Concepción, Concepción, Chile
- Instituto de Ecología y Biodiversidad, Chile
- * E-mail:
| | - Lohengrin A. Cavieres
- Departamento de Botánica, Universidad de Concepción, Concepción, Chile
- Instituto de Ecología y Biodiversidad, Chile
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Schöb C, Callaway RM, Anthelme F, Brooker RW, Cavieres LA, Kikvidze Z, Lortie CJ, Michalet R, Pugnaire FI, Xiao S, Cranston BH, García MC, Hupp NR, Llambí LD, Lingua E, Reid AM, Zhao L, Butterfield BJ. The context dependence of beneficiary feedback effects on benefactors in plant facilitation. New Phytol 2014; 204:386-96. [PMID: 24985245 DOI: 10.1111/nph.12908] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 05/20/2014] [Indexed: 05/20/2023]
Abstract
Facilitative effects of some species on others are a major driver of biodiversity. These positive effects of a benefactor on its beneficiary can result in negative feedback effects of the beneficiary on the benefactor and reduced fitness of the benefactor. However, in contrast to the wealth of studies on facilitative effects in different environments, we know little about whether the feedback effects show predictable patterns of context dependence. We reanalyzed a global data set on alpine cushion plants, previously used to assess their positive effects on biodiversity and the nature of the beneficiary feedback effects, to specifically assess the context dependence of how small- and large-scale drivers alter the feedback effects of cushion-associated (beneficiary) species on their cushion benefactors using structural equation modelling. The effect of beneficiaries on cushions became negative when beneficiary diversity increased and facilitation was more intense. Local-scale biotic and climatic conditions mediated these community-scale processes, having indirect effects on the feedback effect. High-productivity sites demonstrated weaker negative feedback effects of beneficiaries on the benefactor. Our results indicate a limited impact of the beneficiary feedback effects on benefactor cushions, but strong context dependence. This context dependence may help to explain the ecological and evolutionary persistence of this widespread facilitative system.
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Affiliation(s)
- Christian Schöb
- The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK
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Anthelme F, Cavieres LA, Dangles O. Facilitation among plants in alpine environments in the face of climate change. Front Plant Sci 2014; 5:387. [PMID: 25161660 PMCID: PMC4130109 DOI: 10.3389/fpls.2014.00387] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 07/21/2014] [Indexed: 05/04/2023]
Abstract
While there is a large consensus that plant-plant interactions are a crucial component of the response of plant communities to the effects of climate change, available data remain scarce, particularly in alpine systems. This represents an important obstacle to making consistent predictions about the future of plant communities. Here, we review current knowledge on the effects of climate change on facilitation among alpine plant communities and propose directions for future research. In established alpine communities, while warming seemingly generates a net facilitation release, earlier snowmelt may increase facilitation. Some nurse plants are able to buffer microenvironmental changes in the long term and may ensure the persistence of other alpine plants through local migration events. For communities migrating to higher elevations, facilitation should play an important role in their reorganization because of the harsher environmental conditions. In particular, the absence of efficient nurse plants might slow down upward migration, possibly generating chains of extinction. Facilitation-climate change relationships are expected to shift along latitudinal gradients because (1) the magnitude of warming is predicted to vary along these gradients, and (2) alpine environments are significantly different at low vs. high latitudes. Data on these expected patterns are preliminary and thus need to be tested with further studies on facilitation among plants in alpine environments that have thus far not been considered. From a methodological standpoint, future studies will benefit from the spatial representation of the microclimatic environment of plants to predict their response to climate change. Moreover, the acquisition of long-term data on the dynamics of plant-plant interactions, either through permanent plots or chronosequences of glacial recession, may represent powerful approaches to clarify the relationship between plant interactions and climate change.
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Affiliation(s)
- Fabien Anthelme
- Institut de Recherche Pour le Développement, UMR AMAPMontpellier, France
- Instituto de Ecología, Universidad Mayor San AndrésLa Paz, Bolivia
| | - Lohengrin A. Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónConcepción, Chile
- Instituto de Ecología y BiodiversidadSantiago, Chile
| | - Olivier Dangles
- Institut de Recherche pour le Développement, UR 072, Laboratoire Evolution, Génomes et Spéciation, UPR 9034, Centre National de la Recherche ScientifiqueGif-sur-Yvette, France
- Université Paris-Sud 11Orsay, France
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Schöb C, Michalet R, Cavieres LA, Pugnaire FI, Brooker RW, Butterfield BJ, Cook BJ, Kikvidze Z, Lortie CJ, Xiao S, Al Hayek P, Anthelme F, Cranston BH, García MC, Le Bagousse-Pinguet Y, Reid AM, le Roux PC, Lingua E, Nyakatya MJ, Touzard B, Zhao L, Callaway RM. A global analysis of bidirectional interactions in alpine plant communities shows facilitators experiencing strong reciprocal fitness costs. New Phytol 2014; 202:95-105. [PMID: 24329871 DOI: 10.1111/nph.12641] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 11/06/2013] [Indexed: 05/20/2023]
Abstract
Facilitative interactions are defined as positive effects of one species on another, but bidirectional feedbacks may be positive, neutral, or negative. Understanding the bidirectional nature of these interactions is a fundamental prerequisite for the assessment of the potential evolutionary consequences of facilitation. In a global study combining observational and experimental approaches, we quantified the impact of the cover and richness of species associated with alpine cushion plants on reproductive traits of the benefactor cushions. We found a decline in cushion seed production with increasing cover of cushion-associated species, indicating that being a benefactor came at an overall cost. The effect of cushion-associated species was negative for flower density and seed set of cushions, but not for fruit set and seed quality. Richness of cushion-associated species had positive effects on seed density and modulated the effects of their abundance on flower density and fruit set, indicating that the costs and benefits of harboring associated species depend on the composition of the plant assemblage. Our study demonstrates 'parasitic' interactions among plants over a wide range of species and environments in alpine systems, and we consider their implications for the possible selective effects of interactions between benefactor and beneficiary species.
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Affiliation(s)
- Christian Schöb
- Estación Experimental de Zonas Áridas, Consejo Superior de Investigaciones Científicas, EEZA-CSIC, Carretera de Sacramento s/n, La Cañada de San Urbano, 04120, Almería, Spain
| | - Richard Michalet
- University of Bordeaux, UMR CNRS 5805 EPOC, 33405, Talence, France
| | - Lohengrin A Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
- Instituto de Ecología y Biodiversidad, Casilla 653, Santiago, Chile
| | - Francisco I Pugnaire
- Estación Experimental de Zonas Áridas, Consejo Superior de Investigaciones Científicas, EEZA-CSIC, Carretera de Sacramento s/n, La Cañada de San Urbano, 04120, Almería, Spain
| | - Rob W Brooker
- The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK
| | - Bradley J Butterfield
- Merriam-Powell Center for Environmental Research, Northern Arizona University, PO Box 6077, Flagstaff, AZ, 86011, USA
| | - Bradley J Cook
- Department of Biological Sciences, Minnesota State University, Mankato, MN, USA
| | - Zaal Kikvidze
- 4D Research Institute, Ilia State University, 3/5 Cholokashvili Av., Tbilisi, 0162, Georgia
| | - Christopher J Lortie
- Department of Biology, York University, 4700 Keele Street, Toronto, ON, M3J 1P3, Canada
| | - Sa Xiao
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Patrick Al Hayek
- University of Bordeaux, UMR CNRS 5805 EPOC, 33405, Talence, France
- University of Bordeaux, UMR INRA 1202 BIOGECO, 33405, Talence, France
| | - Fabien Anthelme
- Institut de Recherche pour le Développement (IRD), UMR AMAP, Boulevard de la Lironde, TA A-51/PS2, 34398, Montpellier Cedex 5, France
| | - Brittany H Cranston
- Division of Biological Sciences and the Institute on Ecosystems, University of Montana, Missoula, MT, 59812, USA
| | - Mary-Carolina García
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
- Instituto de Ecología y Biodiversidad, Casilla 653, Santiago, Chile
| | - Yoann Le Bagousse-Pinguet
- University of Bordeaux, UMR CNRS 5805 EPOC, 33405, Talence, France
- Department of Botany, Faculty of Science, University of South Bohemia, Branisovska 31, CZ-370 05, Ceske Budejovice, Czech Republic
| | - Anya M Reid
- Department of Forest and Conservation Sciences, University of British Columbia, 2621-2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada
| | - Peter C le Roux
- Department of Geosciences and Geography, University of Helsinki, PO Box 64, 00014, Helsinki, Finland
| | - Emanuele Lingua
- Department TeSAF, University of Padova, Viale dell'Universitá 16, 35020, Legnaro, Italy
| | - Mawethu J Nyakatya
- Department of Conservation Ecology and Entomology, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Blaise Touzard
- University of Bordeaux, UMR INRA 1202 BIOGECO, 33405, Talence, France
| | - Liang Zhao
- Key Laboratory of Ecohydrology of Inland River Basin, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 320 Donggang West Road, Lanzhou, 730000, China
| | - Ragan M Callaway
- Division of Biological Sciences and the Institute on Ecosystems, University of Montana, Missoula, MT, 59812, USA
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Arroyo MTK, Dudley LS, Jespersen G, Pacheco DA, Cavieres LA. Temperature-driven flower longevity in a high-alpine species of Oxalis influences reproductive assurance. New Phytol 2013; 200:1260-8. [PMID: 23952472 DOI: 10.1111/nph.12443] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Accepted: 07/03/2013] [Indexed: 05/24/2023]
Abstract
How high-alpine plants confront stochastic conditions for animal pollination is a critical question. We investigated the effect of temperature on potential flower longevity (FL) measured in pollinator-excluded flowers and actual FL measured in pollinated flowers in self-incompatible Oxalis compacta and evaluated if plastically prolonged potential FL can ameliorate slow pollination under cool conditions. Pollinator-excluded and hand-pollinated flowers were experimentally warmed with open-top chambers (OTCs) on a site at 3470 m above sea level (asl). Flower-specific temperatures, and pollinator-excluded and open-pollination flower life-spans were measured at six alpine sites between 3100 and 3470 m asl. Fruit set was analyzed in relation to inferred pollination time. Warming reduced potential FL. Variable thermal conditions across the alpine landscape predicted potential and actual FL; flower senescence was pollination-regulated. Actual FL and potential FL were coupled. Prolonged potential FL generally increased fruit set under cooler conditions. Plastic responses permit virgin flowers of O. compacta to remain open longer under cooler temperatures, thereby ameliorating slow pollination, and to close earlier when pollination tends to be faster under warmer conditions. Plastic potential FL provides adaptive advantages in the cold, thermally variable alpine habitat, and has important implications for reproductive success in alpine plants in a warming world.
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Affiliation(s)
- Mary T K Arroyo
- Institute of Ecology and Biodiversity (IEB), Santiago, Chile; Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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Cavieres LA, Brooker RW, Butterfield BJ, Cook BJ, Kikvidze Z, Lortie CJ, Michalet R, Pugnaire FI, Schöb C, Xiao S, Anthelme F, Björk RG, Dickinson KJM, Cranston BH, Gavilán R, Gutiérrez-Girón A, Kanka R, Maalouf JP, Mark AF, Noroozi J, Parajuli R, Phoenix GK, Reid AM, Ridenour WM, Rixen C, Wipf S, Zhao L, Escudero A, Zaitchik BF, Lingua E, Aschehoug ET, Callaway RM. Facilitative plant interactions and climate simultaneously drive alpine plant diversity. Ecol Lett 2013; 17:193-202. [DOI: 10.1111/ele.12217] [Citation(s) in RCA: 231] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 07/08/2013] [Accepted: 10/14/2013] [Indexed: 11/27/2022]
Affiliation(s)
- Lohengrin A. Cavieres
- Departamento de Botánica; Facultad de Ciencias Naturales y Oceanográficas; Universidad de Concepción; Casilla 160-C Concepción Chile
- Instituto de Ecología y Biodiversidad; Casilla 653 Santiago Chile
| | - Rob W. Brooker
- The James Hutton Institute; Craigiebuckler Aberdeen AB15 8QH UK
| | - Bradley J. Butterfield
- Merriam-Powell Center for Environmental Research; Northern Arizona University; P.O. Box 6077 Flagstaff AZ 86011 USA
- Department of Biological Sciences; Northern Arizona University; P.O. Box 5640 Flagstaff AZ 86011 USA
| | - Bradley J. Cook
- Department of Biological Sciences; Minnesota State University; Mankato MN 56001 USA
| | - Zaal Kikvidze
- Institute of Ecology; Ilia State University; 32 I.Chavchavadze Av. Tbilisi 0179 Georgia
| | | | - Richard Michalet
- University of Bordeaux; UMR CNRS 5805 EPOC; 33405 Talence France
| | - Francisco I. Pugnaire
- Estación Experimental de Zonas Áridas; Consejo Superior de Investigaciones Científicas; Carretera de Sacramento s/n; La Cañada de San Urbano; Almería E-04120 Spain
| | - Christian Schöb
- The James Hutton Institute; Craigiebuckler Aberdeen AB15 8QH UK
| | - Sa Xiao
- MOE Key Laboratory of Cell Activities and Stress Adaptations; School of Life Science; Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Fabien Anthelme
- Institut de Recherche pour le Développement (IRD); UMR DIADE/AMAP, CIRAD; TA A51/PS2 Montpellier Cedex 5 34398 France
- Pontificia Universidad Católica del Ecuador; Av. 12 de Octubre y Roca Quito Ecuador
| | - Robert G. Björk
- Department of Earth Sciences; University of Gothenburg; P.O. Box 460 Gothenburg SE-405 30 Sweden
| | | | | | - Rosario Gavilán
- Departamento de Biología Vegetal II; Facultad de Farmacia; Universidad Complutense; Madrid E-28040 Spain
| | - Alba Gutiérrez-Girón
- Departamento de Biología Vegetal II; Facultad de Farmacia; Universidad Complutense; Madrid E-28040 Spain
| | - Robert Kanka
- Institute of Landscape Ecology; Slovak Academy of Sciences; Štefánikova 3 Bratislava 814 99 Slovakia
| | | | - Alan F. Mark
- Department of Botany; University of Otago; P. O. Box 56 Dunedin New Zealand
| | - Jalil Noroozi
- Department of Conservation Biology, Vegetation and Landscape Ecology; University of Vienna; Rennweg 14 Vienna 1030 Austria
| | | | - Gareth K. Phoenix
- Department of Animal and Plant Sciences; The University of Sheffield; Western Bank Sheffield S10 2TN UK
| | - Anya M. Reid
- Department of Biology; York University; 4700 Keele Street Toronto ON M3J 1P3 Canada
| | - Wendy M. Ridenour
- Biology Department; University of Montana Western; Dillon MT 59725 USA
| | - Christian Rixen
- WSL Institute for Snow and Avalanche Research SLF; Fluelastrasse 11 Davos 7260 Switzerland
| | - Sonja Wipf
- WSL Institute for Snow and Avalanche Research SLF; Fluelastrasse 11 Davos 7260 Switzerland
| | - Liang Zhao
- Key Laboratory of Ecohydrology of Inland River Basin; Cold and Arid Regions Environmental and Engineering Research Institute; Chinese Academy of Sciences; 320 Donggang West Road Lanzhou 730000 China
| | - Adrián Escudero
- Departamento de Biología y Geología; Universidad Rey Juan Carlos; Móstoles 28933 Spain
| | - Benjamin F. Zaitchik
- Department of Earth and Planetary Sciences; Johns Hopkins University; 327 Olin Hall, 3400 N. Charles Street Baltimore MD 21218 USA
| | - Emanuele Lingua
- Department TeSAF; University of Padova; Viale dell'Universitá 16 Legnaro 35020 Italy
| | - Erik T. Aschehoug
- Department of Biology; North Carolina State University; P.O. Box 7617 Raleigh NC 27695 USA
| | - Ragan M. Callaway
- Division of Biological Sciences and the Institute on Ecosystems; University of Montana; Missoula MT 59812 USA
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Casanova-Katny MA, Torres-Mellado GA, Palfner G, Cavieres LA. The best for the guest: high Andean nurse cushions of Azorella madreporica enhance arbuscular mycorrhizal status in associated plant species. Mycorrhiza 2011; 21:613-622. [PMID: 21384201 DOI: 10.1007/s00572-011-0367-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 02/14/2011] [Indexed: 05/14/2023]
Abstract
Positive interactions between cushion plant and associated plants species in the high Andes of central Chile should also include the effects of fungal root symbionts. We hypothesized that higher colonization by arbuscular mycorrhizal (AM) fungi exists in cushion-associated (nursling) plants compared with conspecific individuals growing on bare ground. We assessed the AM status of Andean plants at two sites at different altitudes (3,200 and 3,600 ma.s.l.) in 23 species, particularly in cushions of Azorella madreporica and five associated plants; additionally, AM fungal spores were retrieved from soil outside and beneath cushions. 18 of the 23 examined plant species presented diagnostic structures of arbuscular mycorrhiza; most of them were also colonized by dark-septate endophytes. Mycorrhization of A. madreporica cushions showed differences between both sites (68% and 32%, respectively). In the native species Hordeum comosum, Nastanthus agglomeratus, and Phacelia secunda associated to A. madreporica, mycorrhization was six times higher than in the same species growing dispersed on bare ground at 3,600 ma.s.l., but mycorrhiza development was less cushion dependent in the alien plants Cerastium arvense and Taraxacum officinale at both sites. The ratio of AM fungal spores beneath versus outside cushions was also 6:1. The common and abundant presence of AM in cushion communities at high altitudes emphasizes the importance of the fungal root symbionts in such situations where plant species benefit from the microclimatic conditions generated by the cushion and also from well-developed mycorrhizal networks.
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Affiliation(s)
| | - Gustavo Adolfo Torres-Mellado
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - Goetz Palfner
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - Lohengrin A Cavieres
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
- Instituto de Ecología y Biodiversidad (IEB), Casilla 653, Santiago, Chile
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Michalet R, Xiao S, Touzard B, Smith DS, Cavieres LA, Callaway RM, Whitham TG. Phenotypic variation in nurse traits and community feedbacks define an alpine community. Ecol Lett 2011; 14:433-43. [PMID: 21366815 DOI: 10.1111/j.1461-0248.2011.01605.x] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Much is known about facilitation, but virtually nothing about the underlying genetic and evolutionary consequences of this important interaction. We assessed the potential of phenotypic differences in facilitative effects of a foundation species to determine the composition of an Alpine community in Arizona. Two phenotypes of Geum rossii occur along a gradient of disturbance, with 'tight' competitive cushions in stable conditions and 'loose' facilitative cushions in disturbed conditions. A common-garden study suggested that field-based traits may have a genetic basis. Field experiments showed that the reproductive fitness of G. rossii cushions decreased with increasing facilitation. Finally, using a dual-lattice model we showed that including the cost and benefit of facilitation may contribute to the co-occurrence of genotypes with contrasting facilitative effects. Our results indicate that changes in community composition due to phenotypic differences in facilitative effects of a foundation species may in turn affect selective pressures on the foundation species.
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Affiliation(s)
- Richard Michalet
- University Bordeaux 1, UMR INRA 1202 BIOGECO, 33405 Talence, France.
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Gómez-González S, Torres-Díaz C, Valencia G, Torres-Morales P, Cavieres LA, Pausas JG. Anthropogenic fires increase alien and native annual species in the Chilean coastal matorral. DIVERS DISTRIB 2010. [DOI: 10.1111/j.1472-4642.2010.00728.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Brooker RW, Callaway RM, Cavieres LA, Kikvidze Z, Lortie CJ, Michalet R, Pugnaire FI, Valiente-Banuet A, Whitham TG. Don't diss integration: a comment on Ricklefs's disintegrating communities. Am Nat 2010; 174:919-27; discussion 928-31. [PMID: 19860539 DOI: 10.1086/648058] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Ricklefs's recent call to investigate ecological processes at large scales helps focus ecologists' attention on an undoubtedly important topic. However, we believe that some of his accompanying arguments for the primacy of such work and, in particular, for the need to "disintegrate" the local community concept are flawed. We revisit Ricklefs's main tenets and demonstrate that research on local communities is a vital part of understanding processes and diversity across a range of spatial and temporal scales. The integration of research across spatial scales expands our horizons and understanding of ecology and evolution, and this should not be unnecessarily constrained to one extreme or the other.
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Affiliation(s)
- Rob W Brooker
- Macaulay Land Use Research Institute, Macaulay Drive, Craigiebuckler, Aberdeen AB158QH, Scotland, United Kingdom.
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Piper FI, Cavieres LA. Gas exchange of juvenile and mature trees of Alnus jorullensis (Betulaceae) at sites with contrasting humidity in the Venezuelan Andes. Ecol Res 2009. [DOI: 10.1007/s11284-009-0631-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sierra-Almeida A, Cavieres LA, Bravo LA. Freezing resistance varies within the growing season and with elevation in high-Andean species of central Chile. New Phytol 2009; 182:461-469. [PMID: 19210722 DOI: 10.1111/j.1469-8137.2008.02756.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Predicted increases in the length of the growing season as a result of climate change may more frequently expose high-elevation plants to severe frosts. Understanding the ability of these species to resist frosts during the growing season is essential for predicting how species may respond to changes in temperature regimes. Here, we assessed the freezing resistance of 24 species from the central Chilean Andes by determining their low temperature damage (LT(50)), ice nucleation temperature (NT), freezing point (FP) and freezing resistance mechanism (i.e. avoidance or tolerance). The Andean species were found to resist frosts from -8.2 to -19.5 degrees C during the growing season, and freezing tolerance was the most common resistance mechanism. Freezing resistance (LT(50)) varied within the growing season, decreasing towards the end of this period in most of the studied species. However, the FP showed the opposite trend. LT(50) increased with elevation, whilst FP was lower in plants from lower elevations, especially late in the growing season. Andean species have the potential to withstand severe freezing conditions during the growing season, and the aridity of this high-elevation environment seems to play an important role in determining this high freezing resistance.
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Affiliation(s)
- Angela Sierra-Almeida
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
- Instituto de Ecología y Biodiversidad (IEB), Casilla 653, Santiago, Chile
| | - Lohengrin A Cavieres
- ECOBIOSIS, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
- Instituto de Ecología y Biodiversidad (IEB), Casilla 653, Santiago, Chile
| | - León A Bravo
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
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